MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  opco1i Structured version   Visualization version   GIF version

Theorem opco1i 8163
Description: Inference form of opco1 8161. (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) = (𝐹‘𝐵)

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 8161 . 2 (⊤ → (𝐵(𝐹 ∘ 1st )𝐶) = (𝐹‘𝐵))
65mptru 1577 1 (𝐵(𝐹 ∘ 1st )𝐶) = (𝐹‘𝐵)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1570  ⊤wtru 1571   ∈ wcel 2147  Vcvv 3454   ∘ ccom 5659  ‘cfv 6558  (class class class)co 7443  1st c1st 8023
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-10 2180  ax-11 2197  ax-12 2216  ax-ext 2735  ax-sep 5252  ax-nul 5263  ax-pr 5395  ax-un 7775
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2102  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2839  df-nfc 2913  df-ne 2960  df-ral 3081  df-rex 3091  df-rab 3417  df-v 3456  df-ss 3901  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-sn 4589  df-pr 4591  df-op 4839  df-uni 4871  df-br 5107  df-opab 5171  df-mpt 5190  df-id 5550  df-xp 5661  df-rel 5662  df-cnv 5663  df-co 5664  df-dm 5665  df-rn 5666  df-res 5667  df-ima 5668  df-iota 6512  df-fun 6560  df-fn 6561  df-f 6562  df-fo 6564  df-fv 6566  df-ov 7446  df-1st 8025
This theorem is used by:  fpwwe  10758  seq1st  16775  algrf  16777  algrp1  16778  dvnff  26273  dvnp1  26275
  Copyright terms: Public domain W3C validator