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Theorem opco1i 8034
Description: Inference form of opco1 8032. (Contributed by Mario Carneiro, 28-May-2014.) (Revised by Mario Carneiro, 30-Apr-2015.)
Hypotheses
Ref Expression
opco1i.1 𝐵 ∈ V
opco1i.2 𝐶 ∈ V
Assertion
Ref Expression
opco1i (𝐵(𝐹 ∘ 1st )𝐶) = (𝐹𝐵)

Proof of Theorem opco1i
StepHypRef Expression
1 opco1i.1 . . . 4 𝐵 ∈ V
21a1i 11 . . 3 (⊤ → 𝐵 ∈ V)
3 opco1i.2 . . . 4 𝐶 ∈ V
43a1i 11 . . 3 (⊤ → 𝐶 ∈ V)
52, 4opco1 8032 . 2 (⊤ → (𝐵(𝐹 ∘ 1st )𝐶) = (𝐹𝐵))
65mptru 1547 1 (𝐵(𝐹 ∘ 1st )𝐶) = (𝐹𝐵)
Colors of variables: wff setvar class
Syntax hints:   = wceq 1540  wtru 1541  wcel 2105  Vcvv 3441  ccom 5625  cfv 6480  (class class class)co 7338  1st c1st 7898
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1912  ax-6 1970  ax-7 2010  ax-8 2107  ax-9 2115  ax-10 2136  ax-11 2153  ax-12 2170  ax-ext 2707  ax-sep 5244  ax-nul 5251  ax-pr 5373  ax-un 7651
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1781  df-nf 1785  df-sb 2067  df-mo 2538  df-eu 2567  df-clab 2714  df-cleq 2728  df-clel 2814  df-nfc 2886  df-ne 2941  df-ral 3062  df-rex 3071  df-rab 3404  df-v 3443  df-dif 3901  df-un 3903  df-in 3905  df-ss 3915  df-nul 4271  df-if 4475  df-sn 4575  df-pr 4577  df-op 4581  df-uni 4854  df-br 5094  df-opab 5156  df-mpt 5177  df-id 5519  df-xp 5627  df-rel 5628  df-cnv 5629  df-co 5630  df-dm 5631  df-rn 5632  df-res 5633  df-ima 5634  df-iota 6432  df-fun 6482  df-fn 6483  df-f 6484  df-fo 6486  df-fv 6488  df-ov 7341  df-1st 7900
This theorem is referenced by:  fpwwe  10504  seq1st  16374  algrf  16376  algrp1  16377  dvnff  25194  dvnp1  25196
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