Theorem rneq 4890

Description: Equality theorem for range. (Contributed by NM, 29-Dec-1996.)

Assertion

Ref	Expression
rneq	⊢ (𝐴 = 𝐵 → ran 𝐴 = ran 𝐵)

Proof of Theorem rneq

Step	Hyp	Ref	Expression
1		cnveq 4837	. . 3 ⊢ (𝐴 = 𝐵 → ◡𝐴 = ◡𝐵)
2	1	dmeqd 4865	. 2 ⊢ (𝐴 = 𝐵 → dom ◡𝐴 = dom ◡𝐵)
3		df-rn 4671	. 2 ⊢ ran 𝐴 = dom ◡𝐴
4		df-rn 4671	. 2 ⊢ ran 𝐵 = dom ◡𝐵
5	2, 3, 4	3eqtr4g 2251	1 ⊢ (𝐴 = 𝐵 → ran 𝐴 = ran 𝐵)

Syntax hints:   → wi 4   = wceq 1364  ^◡ccnv 4659  dom cdm 4660  ran crn 4661

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-ext 2175

This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-nf 1472  df-sb 1774  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-v 2762  df-un 3158  df-in 3160  df-ss 3167  df-sn 3625  df-pr 3626  df-op 3628  df-br 4031  df-opab 4092  df-cnv 4668  df-dm 4670  df-rn 4671

This theorem is referenced by:  rneqi  4891  rneqd  4892  xpima1  5113  feq1  5387  foeq1  5473  ixpsnf1o  6792  imasex  12891