Left hand rule for identity
Leibniz's Law
Loop
Material equivalence
Material implication
Matrix
Modal contexts
Modalities de dicto
Modalities de re
modus ponendo ponens
modus ponendo tollens
modus ponens
modus tollendo ponens
modus tollendo tollens
modus tollens
Names (predicate calculus)
Necessary truth (belief)
Necessary truth (sentence)
Negation (English)
Negation (propositional language)
Non-reflexive
Non-symmetric
Non-transitive