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Theorem anc2li 555
Description: Deduction conjoining antecedent to left of consequent in nested implication. (Contributed by NM, 10-Aug-1994.) (Proof shortened by Wolf Lammen, 7-Dec-2012.)
Hypothesis
Ref Expression
anc2li.1 (𝜑 → (𝜓𝜒))
Assertion
Ref Expression
anc2li (𝜑 → (𝜓 → (𝜑𝜒)))

Proof of Theorem anc2li
StepHypRef Expression
1 anc2li.1 . 2 (𝜑 → (𝜓𝜒))
2 id 22 . 2 (𝜑𝜑)
31, 2jctild 525 1 (𝜑 → (𝜓 → (𝜑𝜒)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395
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 207  df-an 396
This theorem is referenced by:  imdistani  568  pwpw0  4773  sssn  4786  ordtr2  6365  tfis  7811  oeordi  8528  unblem3  9217  trcl  9657  frinsg  9680  pthisspthorcycl  29782  clwlkclwwlkfo  29988  h1datomi  31560  ballotlemfc0  34477  ballotlemfcc  34478  dfrdg4  35932  bj-sbsb  36818  bj-opelidres  37142  clsk1indlem3  44025  sbiota1  44416
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