Theorem opeq2d 3629

Description: Equality deduction for ordered pairs. (Contributed by NM, 16-Dec-2006.)

Hypothesis

Ref	Expression
opeq1d.1	⊢ (𝜑 → 𝐴 = 𝐵)

Assertion

Ref	Expression
opeq2d	⊢ (𝜑 → ⟨𝐶, 𝐴⟩ = ⟨𝐶, 𝐵⟩)

Proof of Theorem opeq2d

Step	Hyp	Ref	Expression
1		opeq1d.1	. 2 ⊢ (𝜑 → 𝐴 = 𝐵)
2		opeq2 3623	. 2 ⊢ (𝐴 = 𝐵 → ⟨𝐶, 𝐴⟩ = ⟨𝐶, 𝐵⟩)
3	1, 2	syl 14	1 ⊢ (𝜑 → ⟨𝐶, 𝐴⟩ = ⟨𝐶, 𝐵⟩)

Syntax hints:   → wi 4   = wceq 1289  ⟨cop 3449

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 665  ax-5 1381  ax-7 1382  ax-gen 1383  ax-ie1 1427  ax-ie2 1428  ax-8 1440  ax-10 1441  ax-11 1442  ax-i12 1443  ax-bndl 1444  ax-4 1445  ax-17 1464  ax-i9 1468  ax-ial 1472  ax-i5r 1473  ax-ext 2070

This theorem depends on definitions:  df-bi 115  df-3an 926  df-tru 1292  df-nf 1395  df-sb 1693  df-clab 2075  df-cleq 2081  df-clel 2084  df-nfc 2217  df-v 2621  df-un 3003  df-sn 3452  df-pr 3453  df-op 3455

This theorem is referenced by:  tfr1onlemaccex  6113  tfrcllemaccex  6126  fundmen  6523  recexnq  6949  elreal2  7368  frecuzrdgrrn  9815  frec2uzrdg  9816  frecuzrdgrcl  9817  frecuzrdgsuc  9821  frecuzrdgrclt  9822  frecuzrdgg  9823  frecuzrdgsuctlem  9830  iseqeq2  9859  iseqeq3  9860  iseqval  9871  iseqvalcbv  9872  iseqvalt  9873  seq3val  9874  eucalgval  11314  strsetsid  11527  ressid2  11552  ressval2  11553