The Institute of General Semantics (IGS) is a not-for-profit corporation established in 1938 by Alfred Korzybski, to support research and publication on the topic of General Semantics. The Institute ...

ETC: A Review of General Semantics is a quarterly journal founded in 1943 by the International Society for General Semantics. ISGS merged with the Institute of General Semantics in 2003 and IGS has ...

Formation rules Induction on formula complexity Semantic methods: Truth tables, partial truth tables, trees Reading: Lemmon pp 41-49, 64-74 Validity in virtue of quantifier structure Elementary ...