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Theorem ofc1 7753
Description: Left operation by a constant. (Contributed by Mario Carneiro, 24-Jul-2014.)
Hypotheses
Ref Expression
ofc1.1 (𝜑 → 𝐴 ∈ 𝑉)
ofc1.2 (𝜑 → 𝐵 ∈ 𝑊)
ofc1.3 (𝜑 → 𝐹 Fn 𝐴)
ofc1.4 ((𝜑 ∧ 𝑋 ∈ 𝐴) → (𝐹‘𝑋) = 𝐶)
Assertion
Ref Expression
ofc1 ((𝜑 ∧ 𝑋 ∈ 𝐴) → (((𝐴 × {𝐵}) ∘f 𝑅𝐹)‘𝑋) = (𝐵𝑅𝐶))

Proof of Theorem ofc1
StepHypRef Expression
1 ofc1.2 . . 3 (𝜑 → 𝐵 ∈ 𝑊)
2 fnconstg 6800 . . 3 (𝐵 ∈ 𝑊 → (𝐴 × {𝐵}) Fn 𝐴)
31, 2syl 18 . 2 (𝜑 → (𝐴 × {𝐵}) Fn 𝐴)
4 ofc1.3 . 2 (𝜑 → 𝐹 Fn 𝐴)
5 ofc1.1 . 2 (𝜑 → 𝐴 ∈ 𝑉)
6 inidm 4126 . 2 (𝐴 ∩ 𝐴) = 𝐴
7 fvconst2g 7239 . . 3 ((𝐵 ∈ 𝑊 ∧ 𝑋 ∈ 𝐴) → ((𝐴 × {𝐵})‘𝑋) = 𝐵)
81, 7sylan 592 . 2 ((𝜑 ∧ 𝑋 ∈ 𝐴) → ((𝐴 × {𝐵})‘𝑋) = 𝐵)
9 ofc1.4 . 2 ((𝜑 ∧ 𝑋 ∈ 𝐴) → (𝐹‘𝑋) = 𝐶)
103, 4, 5, 5, 6, 8, 9ofval 7736 1 ((𝜑 ∧ 𝑋 ∈ 𝐴) → (((𝐴 × {𝐵}) ∘f 𝑅𝐹)‘𝑋) = (𝐵𝑅𝐶))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ∧ wa 401   = wceq 1570   ∈ wcel 2147  {csn 4588   × cxp 5656   Fn wfn 6561  ‘cfv 6566  (class class class)co 7451   ∘f cof 7723
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-rep 5238  ax-sep 5255  ax-nul 5266  ax-pr 5398
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-reu 3370  df-rab 3417  df-v 3456  df-sbc 3743  df-csb 3852  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 4841  df-uni 4873  df-iun 4958  df-br 5109  df-opab 5174  df-mpt 5193  df-id 5553  df-xp 5664  df-rel 5665  df-cnv 5666  df-co 5667  df-dm 5668  df-rn 5669  df-res 5670  df-ima 5671  df-iota 6520  df-fun 6568  df-fn 6569  df-f 6570  df-f1 6571  df-fo 6572  df-f1o 6573  df-fv 6574  df-ov 7454  df-oprab 7455  df-mpo 7456  df-of 7725
This theorem is used by:  ofnegsub  12358  pwsvscaval  17717  lmhmvsca  21371  psrvscaval  22313  mplvscaval  22378  coe1sclmulfv  22657  mamuvs1  22775  mamuvs2  22776  matvscacell  22806  mdetrsca  22973  mbfmulc2lem  26023  i1fmulclem  26078  itg1mulc  26080  itg2monolem1  26126  uc1pmon1p  26525  coemulc  26629  basellem9  27473  mhphf  43891  ofdivrec  45571
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