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Suppose that A –→ (BA C) and A are two hypotheses of an argument. A proof se- quence for the argument could begin with the following steps: 1. А— (ВЛС) hyp 2. A hyp 1, 2, mp 3. ВЛС The justification at step 3 is that steps 1 and 2 exactly match the pattern required for modus ponens, where Pis A and Q is BA C. Modus ponens says that Q can be | derived from P and P → Q.

Suppose that A –→ (BA C) and A are two hypotheses of an argument. A proof se- quence for the argument could begin with the following steps: 1. А— (ВЛС) hyp 2. A hyp 1, 2, mp 3. ВЛС The justification at step 3 is that steps 1 and 2 exactly match the pattern required for modus ponens, where Pis A and Q is BA C. Modus ponens says that Q can be | derived from P and P → Q.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Suppose that A –→ (BA C) and A are two hypotheses of an argument. A proof se- quence for the argument could begin with the following steps: 1. А— (ВЛС) hyp 2. A hyp 1, 2, mp 3. ВЛС The justification at step 3 is that steps 1 and 2 exactly match the pattern required for modus ponens, where Pis A and Q is BA C. Modus ponens says that Q can be | derived from P and P → Q.
Transcribed Image Text:Suppose that A –→ (BA C) and A are two hypotheses of an argument. A proof se- quence for the argument could begin with the following steps: 1. А— (ВЛС) hyp 2. A hyp 1, 2, mp 3. ВЛС The justification at step 3 is that steps 1 and 2 exactly match the pattern required for modus ponens, where Pis A and Q is BA C. Modus ponens says that Q can be | derived from P and P → Q.
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