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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  4771  sssn  4784  ordtr2  6370  tfis  7807  oeordi  8525  unblem3  9206  trcl  9649  frinsg  9675  pthisspthorcycl  29887  clwlkclwwlkfo  30096  h1datomi  31669  ballotlemfc0  34671  ballotlemfcc  34672  dfrdg4  36167  bj-sbsb  37085  bj-opelidres  37416  clsk1indlem3  44399  sbiota1  44790
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