Theorem pm2.86d 71

Description: Deduction based on pm2.86 69.

Hypothesis

Ref	Expression
pm2.86d.1	|- (ph -> ((ps -> ch) -> (ps -> th)))

Assertion

Ref	Expression
pm2.86d	|- (ph -> (ps -> (ch -> th)))

Proof of Theorem pm2.86d

Step	Hyp	Ref	Expression
1		pm2.86d.1	. 2 |- (ph -> ((ps -> ch) -> (ps -> th)))
2		pm2.86 69	. 2 |- (((ps -> ch) -> (ps -> th)) -> (ps -> (ch -> th)))
3	1, 2	syl 10	1 |- (ph -> (ps -> (ch -> th)))

Syntax hints:   -> wi 3

This theorem is referenced by:  pm5.74 583  ax15 1359  rcla4dv 1878  rcla4edv 1879  rcla4devOLD 10431

This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-mp 7

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