ional), #$TruthFunctions are truth-functional in the sense that the truth-value of a (closed, semantically well-formed) sentence (RELN ARG1..ARGN) built using a truth-function RELN is uniquely determined (with respect to a given context) by RELN together with the argument(s) ARG1..ARGN to which it is applied. For example, the sentence `(#$mother #$ChelseaClinton #$HillaryClinton)' is made true (in the actual world) by the fact that Chelsea Clinton's mother is Hillary Clinton.<br />
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