Theorem rspceov 5557

Description: A frequently used special case of rspc2ev 2964 for operation values. (Contributed by set.mm contributors, 21-Mar-2007.)

Assertion

Ref	Expression
rspceov	⊢ ((C ∈ A ∧ D ∈ B ∧ S = (CFD)) → ∃x ∈ A ∃y ∈ B S = (xFy))

Distinct variable groups:   x,A   x,y,B   x,C,y   y,D   x,F,y   x,S,y

Allowed substitution hints:   A(y)   D(x)

Proof of Theorem rspceov

Step	Hyp	Ref	Expression
1		oveq1 5531	. . 3 ⊢ (x = C → (xFy) = (CFy))
2	1	eqeq2d 2364	. 2 ⊢ (x = C → (S = (xFy) ↔ S = (CFy)))
3		oveq2 5532	. . 3 ⊢ (y = D → (CFy) = (CFD))
4	3	eqeq2d 2364	. 2 ⊢ (y = D → (S = (CFy) ↔ S = (CFD)))
5	2, 4	rspc2ev 2964	1 ⊢ ((C ∈ A ∧ D ∈ B ∧ S = (CFD)) → ∃x ∈ A ∃y ∈ B S = (xFy))

Syntax hints:   → wi 4   ∧ w3a 934   = wceq 1642   ∈ wcel 1710  ∃wrex 2616  (class class class)co 5526

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925  ax-ext 2334  ax-nin 4079  ax-xp 4080  ax-cnv 4081  ax-1c 4082  ax-sset 4083  ax-si 4084  ax-ins2 4085  ax-ins3 4086  ax-typlower 4087  ax-sn 4088

This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-nan 1288  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-clab 2340  df-cleq 2346  df-clel 2349  df-nfc 2479  df-ne 2519  df-ral 2620  df-rex 2621  df-v 2862  df-sbc 3048  df-nin 3212  df-compl 3213  df-in 3214  df-un 3215  df-dif 3216  df-symdif 3217  df-ss 3260  df-nul 3552  df-if 3664  df-pw 3725  df-sn 3742  df-pr 3743  df-uni 3893  df-int 3928  df-opk 4059  df-1c 4137  df-pw1 4138  df-uni1 4139  df-xpk 4186  df-cnvk 4187  df-ins2k 4188  df-ins3k 4189  df-imak 4190  df-cok 4191  df-p6 4192  df-sik 4193  df-ssetk 4194  df-imagek 4195  df-idk 4196  df-iota 4340  df-addc 4379  df-nnc 4380  df-phi 4566  df-op 4567  df-br 4641  df-fv 4796  df-ov 5527

This theorem is referenced by: (None)