Consider:
Definition: a is said to be b iff p → q.
Theorem 1: p → r
Theorem 2: r → q
Fill in the missing reasons in the two-column proof that follows.
Theorem: If p, then a is b.
Proof
Given: p
Prove: a is b
conclusions | justifications |
(1) p | Given |
(2)r | (a) ______ ? |
(3)q | (b) ______ ? |
(4) ∴ a is b | (c) ______ ? |
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