Theorem caoprass 4060

Description: Convert an operation associative law to class notation.

Hypotheses

Ref	Expression
caoprass.1	|- A e. V
caoprass.2	|- B e. V
caoprass.3	|- C e. V
caoprass.4	|- ((xFy)Fz) = (xF(yFz))

Assertion

Ref	Expression
caoprass	|- ((AFB)FC) = (AF(BFC))

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

Proof of Theorem caoprass

Step	Hyp	Ref	Expression
1		caoprass.1	. 2 |- A e. V
2		caoprass.2	. 2 |- B e. V
3		caoprass.3	. 2 |- C e. V
4		opreq1 3974	. . . . 5 |- (x = A -> (xFy) = (AFy))
5	4	opreq1d 3981	. . . 4 |- (x = A -> ((xFy)Fz) = ((AFy)Fz))
6		opreq1 3974	. . . 4 |- (x = A -> (xF(yFz)) = (AF(yFz)))
7	5, 6	eqeq12d 1492	. . 3 |- (x = A -> (((xFy)Fz) = (xF(yFz)) <-> ((AFy)Fz) = (AF(yFz))))
8		opreq2 3975	. . . . 5 |- (y = B -> (AFy) = (AFB))
9	8	opreq1d 3981	. . . 4 |- (y = B -> ((AFy)Fz) = ((AFB)Fz))
10		opreq1 3974	. . . . 5 |- (y = B -> (yFz) = (BFz))
11	10	opreq2d 3982	. . . 4 |- (y = B -> (AF(yFz)) = (AF(BFz)))
12	9, 11	eqeq12d 1492	. . 3 |- (y = B -> (((AFy)Fz) = (AF(yFz)) <-> ((AFB)Fz) = (AF(BFz))))
13		opreq2 3975	. . . 4 |- (z = C -> ((AFB)Fz) = ((AFB)FC))
14		opreq2 3975	. . . . 5 |- (z = C -> (BFz) = (BFC))
15	14	opreq2d 3982	. . . 4 |- (z = C -> (AF(BFz)) = (AF(BFC)))
16	13, 15	eqeq12d 1492	. . 3 |- (z = C -> (((AFB)Fz) = (AF(BFz)) <-> ((AFB)FC) = (AF(BFC))))
17	7, 12, 16	syl3an9b 893	. 2 |- ((x = A /\ y = B /\ z = C) -> (((xFy)Fz) = (xF(yFz)) <-> ((AFB)FC) = (AF(BFC))))
18		caoprass.4	. 2 |- ((xFy)Fz) = (xF(yFz))
19	1, 2, 3, 17, 18	vtocl3 1847	1 |- ((AFB)FC) = (AF(BFC))

Syntax hints:   = wceq 958   e. wcel 960  Vcvv 1814  (class class class)co 3969

This theorem is referenced by:  caopr32 4066  caopr12 4067  caopr31 4068  caopr13 4069  caopr4 4070  caopr411 4071  caoprdilem 4074  caoprmo 4076

This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 964  ax-gen 965  ax-8 966  ax-10 968  ax-11 969  ax-12 970  ax-13 971  ax-14 972  ax-17 973  ax-4 975  ax-5o 977  ax-6o 980  ax-9o 1125  ax-10o 1142  ax-16 1212  ax-11o 1220  ax-ext 1462  ax-sep 2708  ax-pow 2748  ax-pr 2785

This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-3an 779  df-ex 983  df-sb 1174  df-eu 1384  df-mo 1385  df-clab 1467  df-cleq 1472  df-clel 1475  df-ne 1590  df-v 1815  df-dif 2052  df-un 2053  df-in 2054  df-ss 2056  df-nul 2284  df-pw 2406  df-sn 2416  df-pr 2417  df-op 2420  df-uni 2508  df-br 2625  df-opab 2672  df-xp 3190  df-cnv 3192  df-dm 3194  df-rn 3195  df-res 3196  df-ima 3197  df-fv 3204  df-opr 3971

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