Symbolic Logic
6 conditional derivations 7 indirect derivations 8 subderivations 9 shortcuts 10 strategy hints for derivations 11 theorems 12 using previously proved theorems in derivations chapter two sentential logic with 'and', 'or', if-and-only-if' 1 symbolic notation 2 english equivalents of the connectives 3 complex sentences 4 rules 5 some derivations ...
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