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G1. Socorro! Não falo Português Brasileiro!
G2. O que é lojban?
G3. Quem está envolvido no projeto Lojban?
G4. Quantas pessoas estão lá na comunidade Lojban? Quantos podem usar Lojban?
G5. O que é LogFest / jbonunsla ?
G6. Qual é a diferença entre Reference Grammar e Complete Lojban Language?
G7. Existe uma introdução mais completa ao Lojban que este FAQ?
R1. Qual é a melhor maneira de começar a aprender Lojban?
R2. Como posso consultar gismu, lujvo, e cmavo quando estou traduzindo do Lojban?
R3. Fontes de texto para ler?
R4. What messages are appropriate for the Lojban List?
R5. Existem arquivos? WWW site? ftp site?
R6. O que está disponÃvel em outros idiomas além do Inglês?
R7. Qual software está disponÃvel?
T1. (Glossary) In English descriptions of lojban, I see lojban words used, as well as lojban jargon. What do these words mean?
T2. How do you borrow words from other languages?
T3. Isn't it confusing that some rafsi are identical to cmavo?
T4. Why do some texts use "h" instead of ' (single quote), or have parentheses, or other non-standard conventions?
T5. Why does it have a special meaning when the selbri comes first in a sentence?
T6. Why are there so many words for AND? Why not just let .e connect two sumti, bridi, bridi -tails, or anything else?
T7. Is the 's' at the end of lojbanized names (such as 'noras.') silent?
PS1. What parts of the language are well worked out, and which parts are in flux?
PS2. What are the most current revisions of each part of the language descriptions?
PS3. What projects are being worked on? When will they be done?
PS4. What can I do to help?
H1. How was the default place structure order of sumti in a selbri determined? (There does not appear to be any rhyme or reason for the order of sumti in many gismu.)
H2. How did the gismu get made: discussion, etymology examples
H3. What is the difference between Loglan and Lojban? How is Loglan-82 related?
H4. Why do older Lojban texts (before 1993) not make much sense sometimes?
B1. I'm not quite sure I understand the written descriptions of how the vowels sound.
G1. Socorro! Não falo Português Brasileiro!
If you speak English, see the FAQ in English.
Você também pode verificar a página de materiais de Lojban em outras lÃnguas para mais materiais que não sejam em inglês.
Lojban é uma lÃngua construÃda cuidadosamente para ser falada, bem como escrita, projetada na esperança de remover uma grande parte das ambiguidades da comunicação humana. Foi conhecido pelo público por um artigo da Scientific American e mencionado tanto em ficção cientÃfica e publicações de informática. Lojban foi construÃdo ao longo de cinco décadas por dezenas de profissionais e centenas de apoiantes.
G3.Quem está envolvido no projeto Lojban?
Key people are listed on the community page.
G4.Quantas pessoas estão lá na comunidade Lojban? Quantos podem usar Lojban?
As of March 2010, close to two thousand people from around the world have developed an interest in Lojban to the point of ordering a book or joined a Lojban List . At any given time, there are at least 50 to 100 active participants (people who will respond if you ask a question on one of the email lists or in IRC chat room, for example). A number of them can hold a real-time conversation in the language.
G5.What is LogFest / jbonunsla ?
LogFest is the annual gathering of the Logical Language Group. We are required by an LLG bylaw to have an annual meeting. Every year we have a Lojban Convention for any and all in the community who are willing to come. LogFest was traditionally held at lojbab's house in Fairfax VA, a suburb of Washington DC, usually over a weekend in July or August. We have typically had around 20 people come for part or all of the weekend. Some of these people are among the more committed Lojbanists, and around half the attendees typically are at beginner skill levels. Usually several people travel a substantial distance in order to attend, and those people are often treated as a guests of honor and are given first consideration for choosing the activities on which we focus.
Other than giving those who had to travel furthest preference in picking topics, LogFest is largely unstructured, in part because we don't know who or how many are coming until a couple of days before things start. LogFest is what the community chooses to make it. Because the official LLG meeting occurs during Logfest, some of the major decisions affecting the Lojban community tend to get made there.
In 2005 and 2006, the annual gatherings started being held at science fiction conventions.
The name "LogFest" is a holdover from Loglan. The word for it in Lojban is "jbonunsla".
G6.Qual é a diferença entre Reference Grammar e Complete Lojban Language?
The Reference Grammar is online; The Complete Lojban Language is the hard-copy book version. The terms are sometimes used interchangeably.
G7.Existe uma introdução mais completa ao Lojban que este FAQ?
Yes! You can read or download What Is Lojban?, also known as the Level Zero book, edited by Nick Nicholas and John Woldemar Cowan. This book makes an excellent introduction to lojban.
R1.Qual é a melhor maneira de começar a aprender Lojban?
We recommend the following:
If some concepts in any of the above resources seem unclear, post your questions to the Lojban List.
R2.How can I look up cmavo when I am translating from Lojban?
Use one of these: - print yourself out the complete gismu list, the current lujvo list, and the complete cmavo list as well as the complete rafsi list - refer to the online dictionary.
There are many. You can find a complete list here. Take your pick from original or translated, short or long, prose or poetry, currently-being-worked-on or completed-and-reviewed.
The Lojban List will have discussion in Lojban from time to time. There is also now a Lojban-only list called jbosnu ("Lojbanic Discussers").
ju'i lobypli (Attention! Lojbanic Users) usually have several examples of commented text, though early issues may have some obsolete words or usages.
Other Lojbanists publish Web pages, some with Lojban texts and some entirely in Lojban. Here are some interesting sites.
Stuff on paper can be ordered from the Logical Language Group; however it is much better if you can retrieve stuff directly off the net.
R4.What messages are appropriate for the Lojban List?
Beginners are encouraged to post. Anything is appropriate as long as the title approximately reflects the content and you're not selling magazine subscriptions or mail-order brides (exception: even THAT is OK if the post is written in Lojban!). You can post on any subject in Lojban, or about Lojban in any language. You can post in any language you think people will understand.
R5.Are there archives? WWW site? ftp site?
There are archives of some of the more recent e-mail list messages on this website, while others are stored at Yahoo. See the mailing lists page.
R6.O que está disponÃvel em outros idiomas além do Inglês?
There are brochures in Spanish (No such attachment on this page), French (No such attachment on this page), Esperanto, and Russian. Jorge and Jose have translated the gismu list into Spanish (No such attachment on this page).
R7.Qual software está disponÃvel?
Up-to-date information is available at the lojban software tools page on the main site. Below are direct links to some of the software directly associated with the LLG.
Logflash 1 - teaches gismu; Turbo-Pascal source code (not well-documented) is available
Logflash 3 - teaches cmavo
Lojban Parser - the definitive standard of Lojban grammar; verifies the Lojban grammar in a text
Lojban Parser/Glosser (includes the parser, roughly glosses text to English)
Random Sentence Generator - updated version in progress, the available version has somewhat obsolete grammar definitions
T1.(Glossary) In English descriptions of lojban, I see lojban words used, as well as lojban jargon. What do these mean?
Here are APPROXIMATE definitions.
Note: Words in ALL CAPS on the Lojban List often refer to Lojban parts of speech. the English-language phonetic translation of ' (single quote) is "h", so when this convention is used, "h" is used as the "capitalization" of '. So in English-language discussion, the lojban part of speech contaning the word la'e (the referent of a sumti) would be "LAhE".
T2.How do you borrow words from other languages?
There are four ways to borrow words. Only the most common method is covered here; see the Lojban Reference Grammar (Chapter 4, Section 7) for more detail. Borrowed words are called fu'ivla, meaning approximately "copied words" (after all, "borrowing" implies we're going to give them back someday!).
The use of lujvo is not always appropriate for very concrete or specific terms (e. g. "brie," or "cobra"), or for jargon words specialized to a narrow field (e. g. "quark," "integral," or "iambic pentameter"). These words are in effect names for concepts, and the names were invented by speakers of another language. The vast majority of names for plants, animals, foods, and scientific terminology cannot be easily expressed as tanru. They thus must be "borrowed" (actually, taken) into Lojban from the original language, forming words called fu'ivla. The word must be Lojbanized into one of several permitted rafsi is then attached to the beginning of the Lojbanized form, usually using a vocalic consonant as "glue" to ensure that the resulting word doesn't fall apart. The rafsi categorizes or limits the meaning of the fu'ivla; otherwise a word having several different jargon meanings in other languages (such as "integral"), would require a choice made as to which meaning should be assigned to the fu'ivla. fu'ivla, like other brivla, are not permitted to have more than one definition.
Summarizing the most common method to make fu'ivla:
Examples:
| English | lojban |
| spaghetti | cidjrspageti or djarspageti |
| maple tree | tricrmeipli |
| maple sugar | saktrmeipli |
| mathematical integral | cmacrnintegra or cmacrntegra |
| brie | cirlrbri |
| cobra | sincrkobra |
| quark | saskrkuarka |
| iambic | pemcrniambo |
A fu'ivla thus consists of three parts: the classifier, the glue, and the borrowed part
The quintessential example is djarspageti, meaning "spaghetti." dja is the classifier: it is the short form rafsi for cidja, meaning "food." "r" is the glue: it is necessary to keep the word from falling into two parts. spageti is the Lojbanized version of "spaghetti." The classifier is glued on the front for two reasons: it helps identify strange borrowings, and it prevents borrowings that happen to coincide with things that are already Lojban words. For example if you borrowed the word "spageti" directly, it could lead to ambiguity in a phrase like
ko bevri re spageti palta
which could mean "Bring two plates of spaghetti" or something like "Be a carrying-reptile and a plate made of this":
ko bevri respa ge ti palta
In a natural language there would be no doubt which of the two was meant, but Lojban is constructed so that you shouldn't need to understand the sentence to know where one word ends and the next begins.
T3.Isn't it confusing that some rafsi are identical to cmavo?
No, it isn't. In theory you can tell completely from the neighboring syllables whether something is a rafsi. This is how the computer is able to parse Lojban without understanding its meaning. For example the dei in bavlamdei ("tomorrow") is a rafsi for "day," not the cmavodei, a special pronoun meaning "this sentence." We know which is which because Lojban words can't end in a consonant, so deimust be a part of bavlamdei; "bavLAM" can't be a whole word. (No, it can't be a name, either. Names end with a consonant followed by a pause, written as a ".") In practice you can also use your knowledge of the meanings of the words to help with this; it is possible to think up a sentence like
la bavLAM. dei cusku,
"Bavlam says this sentence.", but it is not likely in practice if you don't know anyone named "Bavlam"!
T4.Why do some texts use "h" instead of ' (single quote), or have parentheses, or other non-standard conventions?
Aesthetic reasons. And Rosta in particular thinks mohi looks better in print than mo'i (space motion) and sometimes uses it the hopes that he can influence the Lojban community to accept this other spelling convention. This is purely a difference in spelling; they are pronounced the same, and should be considered different ways of writing the same "letter." This alternate spelling also is somewhat closer to the spelling of TLI Loglan. There is another similar spelling convention, which has never been used, designed to make Lojban look more familiar to potential converts from TLI. This alternate convention may be found in the Lojban Reference Grammar.
There are a number of other non-standard spelling conventions:
And Rosta has (or at least had) a style in which ' (single quote) is omitted altogether where the vowels couldn't possibly be stuck together; for example, he'd write coe for co'e (unspecified bridi), since "oe" is not a legal combination. He has used "." (period) as in English, to end a sentence, rather than as a pause. He has capitalized the first word of the sentence.
Xod often uses / (a forward slash) or parentheses to mark clauses out when writing in lojban. He also uses a single capital letter for acronyms instead of the lojban letterals (i.e. A instead of .abu.).
There have been others. In general, they are all quite understandable by a competent lojbanic person, with the possible exception of And's removal of ' (single quote).
T5.Why does it have a special meaning when the selbri comes first?
In Loglan it used to be a command, but now we use either ko (imperative) or attitudinals. In a simple bridi, having the selbri at the beginning make it an observative, which means you are stating that you are observing the relationship in question (much like saying "Fire!" in English, except without necessarily carrying emotional connotations).
In a poi broda (which does/is something-or-other) phrase, it is likely that you'll want x1 to be ke'a and to explicitly state x2. If verb-initial ordering (also called V-initial) wasn't special, and if syntax within a poi (restrictive clause) was consistent with sentence-level syntax, then you'd have to explicitly use fe (second sumti place) or zo'e (unspecified it) or ke'a to get to the x2. For example, now we say
le nanmu poi prami mi (The man which loves me)
and the x1 of prami (love) is elided, and we can assume it is ke'a, which here equals le nanmu (The/a man/men). Without this special treatment of V-initial, we'd have to say
le nanmu poi ke'a prami mi (The man which loves me)
or
le nanmu poi ke'a mi prami. (The man which loves me)
So: it saves 2 syllables in what is arguably the most common way of using poi (restrictive clause). May or may not be worth it, depending on how you value word-order flexibility vs. brevity. In general it lets you easily get to x2 in sentences without an x1.
Remember: There's always more than one way to do it in lojban.
T6.Why are there so many words for AND? Why not just let ".e" (and, between sumti) connect two bridi, bridi-tails (a predicate and a sumti), or anything else?
We use different connectives for different scopes. Doing so helps the listener keep track of what exactly the speaker wants connected. This is much more important in speech than in text, because in text you can re-read and ponder. If you have a multi-part nested sumti joined to another multi-part nested sumti, having clear indicators of scope may make the sentence understandable when otherwise it is not. It is therefore hoped that spoken Lojban and written Lojban can be similar in level of complexity. (You know, audiovisual isomorphism.)
T7.Is the 's' at the end of lojbanized names (such as 'noras.') silent?
No. 'noras.' is really pronounced with an 's' at the end.
Some languages can borrow names with virtually no changes, but Lojban is one of the languages that sometimes requires quite heavy modification of the names. Specifically, all Lojban words of the class cmene must always end in a consonant. Sometimes, this requires removing a vowel at the end, or adding a consonant. By convention, this is often 's', but it could be any consonant.
If names were not changed this way, some of them could be mistaken for other words, or sequences of words. In this case, were there no 's' at the end, 'nora' would read as 'no ra', ie. "none of them"! This distinction is as important in speech as in writing, so names, as any other Lojban word, must be pronounced exactly as written. There are no silent letters in Lojban.
PS1.What parts of the language are well worked out, and which parts are in flux?
As of 1997, the language design has been baselined for a minimum of 5 years after the publication of the three books: the reference grammar, the dictionary, and the textbook. Since the latter two are not near publication, this means that no changes to the language will even be considered until at least 2006. This baseline is non-negotiable, even if we enter into discussions with The Loglan Institute to reunite the Loglan community now that JCB has passed on.
The phonology, orthography, and morphology have been essentially stable since 1988, except for a slight change in what counts as a legal fu'ivla. The gismu list has been stable since 1988, except that about 25 gismu have been added and 2 gismu had minor changes up until 1994, but since then only clarifications of confusing wording have been made to the official baseline gismu list, and they are now considered baselined. The rafsi have been unchanged since 1993, when around 20% were changed in a final tuning before baselining them. Much existing text has not been updated after the rafsi change, so texts dated before 1993 may be confusing. The grammar has been basically stable since 1993, was under careful documented control after that date, and frozen with the publication of The Complete Lojban Language in 1997. The cmavo list has been baselined since 1997, though new compounds may be defined through usage. The only area not frozen is the addition of new words to the lexicon through borrowing (lujvo). Those two productive areas are open-ended; a primary limitation on the language definition is the inability to record and define new coinings as fast as they are invented.
The basic semantics of the language are stable. There are still ongoing disputes about "how to say it best in Lojban"; we expect these to continue indefinitely. As a matter of policy, changes even to Lojban non-baselined usages, if they would require people to re-learn things, are resisted vigorously. Almost anything that practical people (i.e. beginners) would actually use is well worked out, debugged and stable. Points of controversy include highly technical philosophical issues such as whether empty sets are or are not excluded as the candidate referent set of a sumti, or whether current grammar is adequate to represent all possible forms of indirect questions. The answers are very important to the language definition (no joke), but people have been speaking natural languages for years without knowing the answers, so don't worry about Lojban. And you don't have to know what lambda calculus is. The major point of controversy that is significant to beginners is a feeling in some quarters that the policies used to design the place (argument, gismu (basic predicate words) were not exactly optimal. Sometimes the semantics of the less-used places are at issue. Officially, we'll go with what we have to preserve the investment people have made in learning the language, and after the baseline period is over, those who are actually speaking the language will be allowed to discuss changes in Lojban. There are no plans to ever seriously discuss changes to the language other than in Lojban.
PS2.What are the most current revisions of each part of the language descriptions?
The versions found on the Lojban web site are definitive, except that the printed version of The Lojban Reference Grammar ( which is called The Complete Lojban Language ) takes precedence over the HTML version. Working drafts of books in preparation are maintained on lojbab's home computers, and may be slightly updated from the on-line versions.
PS3.What projects are being worked on? When will they be done?
The Complete Lojban Language is of course complete and published.
For a current list of ongoing projects, see the Official LLG Projects page, the Old LLG Committees page, and the wiki ongoing projects page.
WHEN?
Projects are all being done by volunteers, and therefore will be done when people finish them. We've promised dates in the past and invariably been wrong. The priorities are for the dictionary and the introductory materials book, with the latter more likely to come out earlier than the former. Publication of books is severely hampered by finances (anyone with money is welcome to donate!), and the lack of ability to publish in the short term has tended to hurt motivation and productivity of those working on those publications.
A few possibilities:
H1.How was the default selbri determined? (There does not appear to be any rhyme or reason for the order of gismu''.)
They went through a lot of revisions; it is something in-between planning and evolution. There is a considerable amount of system there, but it is ill-documented.
The nice thing to know is that you don't have to memorize the place structures. Just using the language, you will come to have a feel for which places are present and in what order.
Most people who take the time to become familiar with the language find that with practice, they begin to develop a sense of what the place structures ought to be. Conveniently, their sense usually matches up with the definition.
H2.How did the gismu get made: discussion, etymology examples?
There is a full set of etymologies on the file server. There is some explanation available, including samples (broken link), and a more verbose description in the Level 0 package and at the Lojban Etymology Information page.
The etymologies in 6 languages and the scoring for each language are given, in order Chinese/English/Hindi/Spanish/Russian/Arabic—a 0 score means that the language made no contribution to the word, and thus its etymological keyword did not matter. The languages were weighted. While new gismu are not being made, lojbab updates the weighting based on estimated numbers of first and second language speakers every couple of years. The original and 1999 weights are available online.
H3.What is the difference between Loglan and Lojban? How is Loglan-82 related?
James Cooke Brown ( JCB ) came up with the idea of Loglan in the 1940s and starting inventing the language around 1955. It has been evolving ever since. In 1982-4 or so there was a political disagreement and the Loglan community fell apart. A couple of years later, Bob LeChevalier (lojbab), then working with JCB, attempted to resurrect the community. This led to a falling out based on JCB's proprietary intellectual property claims on the language. The community split into two efforts, with JCB at the head of of the Loglan effort, The Loglan Institute (TLI), and (lojbab) at the head of the Lojban effort, the Logical Language Group (LLG). The latter is Lojban, which LLG (backed up by a court decision) considers a subcategory of Loglan. Sadly, JCB passed away in 2000. It is unclear if the Loglan organization has leadership capable of sustaining the effort. A more lengthy discussion of the issues can be found in the article The Loglan-Lojban Dispute, and in ju'i lobypli (Attention! Lojbanic Users).
lojbab makes occasional efforts to spark discussion that would lead to reunification of the efforts behind Lojban, although no consideration will be given to abandoning the Lojban baseline.
Loglan-82 is a completely unrelated computer language developed in Poland by people unaware of the existence of the Loglan/Lojban project.
H4.Why do older Lojban texts (before 1993) not make much sense sometimes?
Lojban has been quite stable since 1992-3, when the last significant changes were made (since then, most "changes" have been additions to the language which did not make older text invalid). The last changes to the gismu list were made in 1992, and in 1993 the rafsi in Lojban word-making. There is a translation table from the older rafsi to the final set.
B1.I'm not quite sure I understand the written descriptions of how the vowels sound.
Here is a link to a vowel sound file in Ogg Vorbis format.