(A V B) → ~c C VD A →~B :. A → D

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter2: Linear Equations
Section: Chapter Questions
Problem 71SGR
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Question

Given the following argument, prove its validity using proof by contradiction, and direct proof. Use the rules of equivalence and inferential for justifications.

Write the answer in this format:

Statement Reasons/Justifications
1.  Premise
2. Premise
3. Premise
(AVB)
C VD
A →~B
→ ~c
... A → D
Transcribed Image Text:(AVB) C VD A →~B → ~c ... A → D
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