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Logic  /  Logic 197  ·  Atom · ~20 seconds

Simplification

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State

From p · q, derive p (or q).

Show

1. A · B. 2. A (1, Simp).

Watch for

Only from a line whose *main connective* is the dot. From (A · B) ⊃ C you may simplify nothing — that line is a conditional.