Answered: I have been trying to do this logic…

I have been trying to do this logic question. Attached below is my answer. However, I can not use trans, and am instead suppose to use some other proof equivalent to it. What should I do?

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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Question

I have been trying to do this logic question. Attached below is my answer. However, I can not use trans, and am instead suppose to use some other proof equivalent to it. What should I do?

|(A:B)=R
A.
c=~R/:i~(C·B)
@ (A·B)= R
(P).
(P)
® C→~R
-> _(P).
© A=(B=R)
(1, EXP).
© B=R
(2,4 MP).
-> (3, Trans)
-> (5,6 HS )
®~By~C_
->
(7, IMPL).
O~Cv~B_
(8,COM)
@~(c ·B)
( 9, DM )
->

(1) 1. (A· B) 그R
2. A
3. C)-R1:. - (C - B)

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