Theorem imaeq2d 4688

Description: Equality theorem for image. (Contributed by FL, 15-Dec-2006.)

Hypothesis

Ref	Expression
imaeq1d.1	⊢ (𝜑 → 𝐴 = 𝐵)

Assertion

Ref	Expression
imaeq2d	⊢ (𝜑 → (𝐶 “ 𝐴) = (𝐶 “ 𝐵))

Proof of Theorem imaeq2d

Step	Hyp	Ref	Expression
1		imaeq1d.1	. 2 ⊢ (𝜑 → 𝐴 = 𝐵)
2		imaeq2 4684	. 2 ⊢ (𝐴 = 𝐵 → (𝐶 “ 𝐴) = (𝐶 “ 𝐵))
3	1, 2	syl 14	1 ⊢ (𝜑 → (𝐶 “ 𝐴) = (𝐶 “ 𝐵))

Syntax hints:   → wi 4   = wceq 1284   “ cima 4366

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 662  ax-5 1376  ax-7 1377  ax-gen 1378  ax-ie1 1422  ax-ie2 1423  ax-8 1435  ax-10 1436  ax-11 1437  ax-i12 1438  ax-bndl 1439  ax-4 1440  ax-17 1459  ax-i9 1463  ax-ial 1467  ax-i5r 1468  ax-ext 2063

This theorem depends on definitions:  df-bi 115  df-3an 921  df-tru 1287  df-nf 1390  df-sb 1686  df-clab 2068  df-cleq 2074  df-clel 2077  df-nfc 2208  df-v 2603  df-un 2977  df-in 2979  df-ss 2986  df-sn 3404  df-pr 3405  df-op 3407  df-br 3786  df-opab 3840  df-xp 4369  df-cnv 4371  df-dm 4373  df-rn 4374  df-res 4375  df-ima 4376

This theorem is referenced by:  imaeq12d  4689  nfimad  4697  elimasng  4713  ressn  4878  foima  5131  f1imacnv  5163  fvco2  5263  fsn2  5358  resfunexg  5403  funfvima3  5413  funiunfvdm  5423  isoselem  5479  fnexALT  5760  eceq1  6164  uniqs2  6189  ecinxp  6204  phplem4  6341  phplem4dom  6348  phplem4on  6353