Chapter 14: If Wishes Were Horses: The Lojban Connective System

21. Truth functions and corresponding logical connectives

The following table specifies, for each truth function, the most-often used compound cmavo which expresses it for each of the six types of logical connective. (Other compound cmavo are often possible: for example, “se.a” means the same as “a”, and could be used instead.)

truth  ek  jek gihek     gek--gik  guhek--gik
-----   --  — -----     --------- -----------

TTTF    .a  ja  gi'a      ga--gi    gu'a--gi
TTFT    .anai   janai   gi'anai   ga--ginai gu'a--ginai
TTFF    .u  ju  gi'u      gu--gi    gu'u--gi
TFTT    na.a    naja    nagi'a    ganai--gi gu'anai--gi
TFTF    se.u    seju    segi'u    segu--gi  segu'u--gi
TFFT    .o  jo  gi'o      go--gi    gu'o--gi
TFFF    .e  je  gi'e      ge--gi    gu'e--gi
FTTT    na.anai najanai nagi'anai ganai--ginai  gu'anai--ginai
FTTF    .onai   jonai   gi'onai   go--ginai gu'o--ginai
FTFT    se.unai sejunai segi'unai segu--ginai   segu'u--ginai
FTFF    .enai   jenai   gi'enai   ge--ginai gu'e--ginai
FFTT    na.u    naju    nagi'u    gunai--gi gu'unai--gi
FFTF    na.e    naje    nagi'e    genai--gi gu'enai--gi
FFFT    na.enai najenai nagi'enai genai--ginai  gu'enai--ginai

Note: Ijeks are exactly the same as the corresponding jeks, except for the prefixed “.i”.