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# These are three questions I have for my Introduction to Logic that I am stuck on.These are the instructions:

Construct a formal proof for each of the following valid arguments using the rules of implication/inference and the first 5 rules of replacement.

The two problems are below.

1. R>~X
2. DvR
3. X /D

1. ~(~E v ~N) > T
2. G> (N & E) /G>T

The third problem is a little different.

The instructions are:

Construct a proof for the following valid argument using all 18 rules.

1. (A & B) > C
2. (B > C) > (Q v X)
3. ~(Q v ~A) /X

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Subject: Logic, Math

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