ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  ibar GIF version

Theorem ibar 301
Description: Introduction of antecedent as conjunct. (Contributed by NM, 5-Dec-1995.) (Revised by NM, 24-Mar-2013.)
Assertion
Ref Expression
ibar (𝜑 → (𝜓 ↔ (𝜑𝜓)))

Proof of Theorem ibar
StepHypRef Expression
1 pm3.2 139 . 2 (𝜑 → (𝜓 → (𝜑𝜓)))
2 simpr 110 . 2 ((𝜑𝜓) → 𝜓)
31, 2impbid1 142 1 (𝜑 → (𝜓 ↔ (𝜑𝜓)))
Colors of variables:    wff set class
This proof depends on syntax axioms:  wi 4  wa 104  wb 105
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia2 107  ax-ia3 108
This proof depends on definitions:  df-bi 117
This theorem is used by:  biantrur  303  biantrurd  305  anclb  319  pm5.42  320  pm5.32  457  anabs5  579  pm5.33  617  bianabs  619  annotanannot  680  baib  931  baibd  935  anxordi  1449  euan  2143  eueq3dc  3000  ifandc  3681  xpcom  5334  fvopab3g  5778  riota1a  6059  opabfi  7247  funisfsupp  7291  2omap  7319  ctssdccl  7452  2omotaplemap  7624  recmulnqg  7759  ltexprlemloc  7975  mul0eqap  9003  eluz2  9937  rpnegap  10098  elfz2  10429  zmodid2  10803  shftfib  11603  dvdsssfz1  12637  modremain  12714  ballotfilemdifcfz  13278  ctiunctlemudc  13379  issubg  14027  resgrpisgrp  14049  qusecsub  14186  issubrng  14558  issubrg  14580  txcnmpt  15426  reopnap  15699  ellimc3apf  15813  ralrals  17271  ralals  17277
  Copyright terms: Public domain W3C validator