S 1. 2. 3. 1. Cv (~Dv-X) 2. ~C 3. X 1. AD B 2. B 3. ~AD (~Cv B) 1. ~ADD 2. ~D v (~B~~~~A) 3. ~A 4. ~B /~D (Note: /~D means: prove ~D) I /~C /~~~~A

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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Use only the inference rules MP,MT,DS and HS for these questions. ( you can use DN if you want, though you do not need to use it)
S
1.
2.
3.
1. Cv (~Dv-X)
2. ~C
3. X
1. AD B
2. B
3.-A (~Cv B)
1. ~AD D
2. ~Dv (~B~~~~A)
3. ~A
4. ~B
/~D (Note: /~D means: prove ~D)
I
/~C
/~~~~A
Transcribed Image Text:S 1. 2. 3. 1. Cv (~Dv-X) 2. ~C 3. X 1. AD B 2. B 3.-A (~Cv B) 1. ~AD D 2. ~Dv (~B~~~~A) 3. ~A 4. ~B /~D (Note: /~D means: prove ~D) I /~C /~~~~A
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