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At: contrapositive 1 1 2 1 1

1. P: Prop
2. Q: Prop
3. P P
4. Q
5. Q P
6. P
7. P

Q

By:
UnfoldTopAb 7
THEN
FwdThru 7 [6]
THEN
Trivial


Generated subgoals:

None

About:
propimpliesor

(9steps) PrintForm Definitions core 3 jlc Sections Support(jlc) Doc