INTRO TO LOGIC Determine whether each sentence of SL is a tautology, contradiction, or contingent sentence (circle answe

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INTRO TO LOGIC
Determine whether each sentence of SL is a tautology,
contradiction, or contingent sentence (circle answer). Justify your
answer with a complete or partial truth table as
necessary.
(S → T) & (¬S ∨ T) Tautology Contradiction
Contingent
(¬M ∨ N) & (M ↔ N) Tautology Contradiction
Contingent
(C ∨ C)→C Tautology Contradiction
Contingent