#6: introduced denyAntecedent_negTest which is already satisfied as expected
(technically it is just another negative test for isFallacy, not necessarily for the 'Denying the antecedent' fallacy
Merge branch 'shlomo.6.fol_to_fallacy' of github.com:gekonwi/brandeis.semantics.final_project into shlomo.6.fol_to_fallacy