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Theorem ofc1 7721
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 6770 . . 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 4172 . 2 (𝐴 ∩ 𝐴) = 𝐴
7 fvconst2g 7208 . . 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 7704 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 2145  {csn 4584   × cxp 5649   Fn wfn 6533  ‘cfv 6538  (class class class)co 7420   ∘f cof 7691
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 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-rep 5232  ax-sep 5249  ax-nul 5260  ax-pr 5391
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 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-reu 3367  df-rab 3414  df-v 3453  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-iun 4953  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-iota 6494  df-fun 6540  df-fn 6541  df-f 6542  df-f1 6543  df-fo 6544  df-f1o 6545  df-fv 6546  df-ov 7423  df-oprab 7424  df-mpo 7425  df-of 7693
This theorem is used by:  ofnegsub  12318  pwsvscaval  17667  lmhmvsca  21320  psrvscaval  22258  mplvscaval  22323  coe1sclmulfv  22602  mamuvs1  22720  mamuvs2  22721  matvscacell  22751  mdetrsca  22918  mbfmulc2lem  25968  i1fmulclem  26023  itg1mulc  26025  itg2monolem1  26071  uc1pmon1p  26470  coemulc  26574  basellem9  27416  mhphf  43625  ofdivrec  45309
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