Theorem reseq2i 4752

Description: Equality inference for restrictions. (Contributed by Paul Chapman, 22-Jun-2011.)

Hypothesis

Ref	Expression
reseqi.1	⊢ 𝐴 = 𝐵

Assertion

Ref	Expression
reseq2i	⊢ (𝐶 ↾ 𝐴) = (𝐶 ↾ 𝐵)

Proof of Theorem reseq2i

Step	Hyp	Ref	Expression
1		reseqi.1	. 2 ⊢ 𝐴 = 𝐵
2		reseq2 4750	. 2 ⊢ (𝐴 = 𝐵 → (𝐶 ↾ 𝐴) = (𝐶 ↾ 𝐵))
3	1, 2	ax-mp 7	1 ⊢ (𝐶 ↾ 𝐴) = (𝐶 ↾ 𝐵)

Syntax hints:   = wceq 1299   ↾ cres 4479

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 671  ax-5 1391  ax-7 1392  ax-gen 1393  ax-ie1 1437  ax-ie2 1438  ax-8 1450  ax-10 1451  ax-11 1452  ax-i12 1453  ax-bndl 1454  ax-4 1455  ax-17 1474  ax-i9 1478  ax-ial 1482  ax-i5r 1483  ax-ext 2082

This theorem depends on definitions:  df-bi 116  df-tru 1302  df-nf 1405  df-sb 1704  df-clab 2087  df-cleq 2093  df-clel 2096  df-nfc 2229  df-v 2643  df-in 3027  df-opab 3930  df-xp 4483  df-res 4489

This theorem is referenced by:  reseq12i  4753  rescom  4780  resdmdfsn  4798  rescnvcnv  4937  resdm2  4965  funcnvres  5132  funimaexg  5143  resdif  5323  frecfnom  6228  facnn  10314  fac0  10315  expcnv  11112  setsslid  11791  uptx  12224  txcn  12225