Theorem coeq1i 5203

Description: Equality inference for composition of two classes. (Contributed by NM, 16-Nov-2000.)

Hypothesis

Ref	Expression
coeq1i.1	⊢ 𝐴 = 𝐵

Assertion

Ref	Expression
coeq1i	⊢ (𝐴 ∘ 𝐶) = (𝐵 ∘ 𝐶)

Proof of Theorem coeq1i

Step	Hyp	Ref	Expression
1		coeq1i.1	. 2 ⊢ 𝐴 = 𝐵
2		coeq1 5201	. 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∘ 𝐶) = (𝐵 ∘ 𝐶))
3	1, 2	ax-mp 5	1 ⊢ (𝐴 ∘ 𝐶) = (𝐵 ∘ 𝐶)

Syntax hints:   = wceq 1475   ∘ ccom 5042

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-in 3547  df-ss 3554  df-br 4584  df-opab 4644  df-co 5047

This theorem is referenced by:  coeq12i  5207  cocnvcnv1  5563  hashgval  12982  imasdsval2  15999  prds1  18437  pf1mpf  19537  upxp  21236  uptx  21238  hoico2  28000  hoid1ri  28033  nmopcoadj2i  28345  pjclem3  28440  erdsze2lem2  30440  pprodcnveq  31160  diblss  35477  cononrel2  36920  trclubgNEW  36944  cortrcltrcl  37051  corclrtrcl  37052  cortrclrcl  37054  cotrclrtrcl  37055  cortrclrtrcl  37056  neicvgbex  37430  neicvgnvo  37433  dvsinax  38801