Theorem caov4 5639

Description: Rearrange arguments in a commutative, associative operation. (Contributed by set.mm contributors, 26-Aug-1995.)

Hypotheses

Ref	Expression
caopr.1	⊢ A ∈ V
caopr.2	⊢ B ∈ V
caopr.3	⊢ C ∈ V
caopr.com	⊢ (xFy) = (yFx)
caopr.ass	⊢ ((xFy)Fz) = (xF(yFz))
caopr.4	⊢ D ∈ V

Assertion

Ref	Expression
caov4	⊢ ((AFB)F(CFD)) = ((AFC)F(BFD))

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

Proof of Theorem caov4

Step	Hyp	Ref	Expression
1		caopr.2	. . . 4 ⊢ B ∈ V
2		caopr.3	. . . 4 ⊢ C ∈ V
3		caopr.4	. . . 4 ⊢ D ∈ V
4		caopr.com	. . . 4 ⊢ (xFy) = (yFx)
5		caopr.ass	. . . 4 ⊢ ((xFy)Fz) = (xF(yFz))
6	1, 2, 3, 4, 5	caov12 5636	. . 3 ⊢ (BF(CFD)) = (CF(BFD))
7	6	oveq2i 5534	. 2 ⊢ (AF(BF(CFD))) = (AF(CF(BFD)))
8		caopr.1	. . 3 ⊢ A ∈ V
9		ovex 5551	. . 3 ⊢ (CFD) ∈ V
10	8, 1, 9, 5	caovass 5627	. 2 ⊢ ((AFB)F(CFD)) = (AF(BF(CFD)))
11		ovex 5551	. . 3 ⊢ (BFD) ∈ V
12	8, 2, 11, 5	caovass 5627	. 2 ⊢ ((AFC)F(BFD)) = (AF(CF(BFD)))
13	7, 10, 12	3eqtr4i 2383	1 ⊢ ((AFB)F(CFD)) = ((AFC)F(BFD))

Syntax hints:   = wceq 1642   ∈ wcel 1710  Vcvv 2859  (class class class)co 5525

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 4078  ax-xp 4079  ax-cnv 4080  ax-1c 4081  ax-sset 4082  ax-si 4083  ax-ins2 4084  ax-ins3 4085  ax-typlower 4086  ax-sn 4087

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-eu 2208  df-clab 2340  df-cleq 2346  df-clel 2349  df-nfc 2478  df-ne 2518  df-ral 2619  df-rex 2620  df-v 2861  df-sbc 3047  df-nin 3211  df-compl 3212  df-in 3213  df-un 3214  df-dif 3215  df-symdif 3216  df-ss 3259  df-nul 3551  df-if 3663  df-pw 3724  df-sn 3741  df-pr 3742  df-uni 3892  df-int 3927  df-opk 4058  df-1c 4136  df-pw1 4137  df-uni1 4138  df-xpk 4185  df-cnvk 4186  df-ins2k 4187  df-ins3k 4188  df-imak 4189  df-cok 4190  df-p6 4191  df-sik 4192  df-ssetk 4193  df-imagek 4194  df-idk 4195  df-iota 4339  df-addc 4378  df-nnc 4379  df-phi 4565  df-op 4566  df-br 4640  df-fv 4795  df-ov 5526

This theorem is referenced by:  caov42  5641