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Theorem wl-impchain-mp-x 32241
Description: This series of theorems provide a means of exchanging the consequent of an implication chain via a simple implication. In the main part, the theorems ax-mp 5, syl 17, syl6 34, syl8 73 form the beginning of this series. These theorems are replicated here, but with proofs that aim at a recursive scheme, allowing to base a proof on that of the previous one in the series. (Contributed by Wolf Lammen, 17-Nov-2019.)
Assertion
Ref Expression
wl-impchain-mp-x

Proof of Theorem wl-impchain-mp-x
StepHypRef Expression
1 tru 1478 1
Colors of variables: wff setvar class
Syntax hints:  wtru 1475
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 195  df-tru 1477
This theorem is referenced by: (None)
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