Theorem ofc1 7037

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

Step	Hyp	Ref	Expression
1		ofc1.2	. . 3 ⊢ (𝜑 → 𝐵 ∈ 𝑊)
2		fnconstg 6206	. . 3 ⊢ (𝐵 ∈ 𝑊 → (𝐴 × {𝐵}) Fn 𝐴)
3	1, 2	syl 17	. 2 ⊢ (𝜑 → (𝐴 × {𝐵}) Fn 𝐴)
4		ofc1.3	. 2 ⊢ (𝜑 → 𝐹 Fn 𝐴)
5		ofc1.1	. 2 ⊢ (𝜑 → 𝐴 ∈ 𝑉)
6		inidm 3930	. 2 ⊢ (𝐴 ∩ 𝐴) = 𝐴
7		fvconst2g 6583	. . 3 ⊢ ((𝐵 ∈ 𝑊 ∧ 𝑋 ∈ 𝐴) → ((𝐴 × {𝐵})‘𝑋) = 𝐵)
8	1, 7	sylan 489	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐴) → ((𝐴 × {𝐵})‘𝑋) = 𝐵)
9		ofc1.4	. 2 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐴) → (𝐹‘𝑋) = 𝐶)
10	3, 4, 5, 5, 6, 8, 9	ofval 7023	1 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝐴) → (((𝐴 × {𝐵}) ∘𝑓 𝑅𝐹)‘𝑋) = (𝐵𝑅𝐶))

Syntax hints:   → wi 4   ∧ wa 383   = wceq 1596   ∈ wcel 2103  {csn 4285   × cxp 5216   Fn wfn 5996  ‘cfv 6001  (class class class)co 6765   ∘_𝑓 cof 7012

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1835  ax-4 1850  ax-5 1952  ax-6 2018  ax-7 2054  ax-9 2112  ax-10 2132  ax-11 2147  ax-12 2160  ax-13 2355  ax-ext 2704  ax-rep 4879  ax-sep 4889  ax-nul 4897  ax-pr 5011

This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3an 1074  df-tru 1599  df-ex 1818  df-nf 1823  df-sb 2011  df-eu 2575  df-mo 2576  df-clab 2711  df-cleq 2717  df-clel 2720  df-nfc 2855  df-ne 2897  df-ral 3019  df-rex 3020  df-reu 3021  df-rab 3023  df-v 3306  df-sbc 3542  df-csb 3640  df-dif 3683  df-un 3685  df-in 3687  df-ss 3694  df-nul 4024  df-if 4195  df-sn 4286  df-pr 4288  df-op 4292  df-uni 4545  df-iun 4630  df-br 4761  df-opab 4821  df-mpt 4838  df-id 5128  df-xp 5224  df-rel 5225  df-cnv 5226  df-co 5227  df-dm 5228  df-rn 5229  df-res 5230  df-ima 5231  df-iota 5964  df-fun 6003  df-fn 6004  df-f 6005  df-f1 6006  df-fo 6007  df-f1o 6008  df-fv 6009  df-ov 6768  df-oprab 6769  df-mpt2 6770  df-of 7014

This theorem is referenced by:  ofnegsub  11131  pwsvscaval  16278  lmhmvsca  19168  psrvscaval  19515  mplvscaval  19571  coe1sclmulfv  19776  mamuvs1  20334  mamuvs2  20335  matvscacell  20365  mdetrsca  20532  mbfmulc2lem  23534  i1fmulclem  23589  itg1mulc  23591  itg2monolem1  23637  uc1pmon1p  24031  coemulc  24131  basellem9  24935  ofdivrec  38944