Theorem acdc2lem1 7438

Description: Lemma for acdc2 7440.

Hypotheses

Ref	Expression
acdc2lem.1	|- A e. V
acdc2lem.2	|- S = {<.<.x, y>., z>. | ((x e. A /\ y e. NN) /\ z = U.{v e. (yFx) | A.u e. (yFx) -. urv})}
acdc2lem.3	|- G = (S seq1 ({<.1, c>.} u. (I |` (NN \ {1}))))

Assertion

Ref	Expression
acdc2lem1	|- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> ((XSK) e. (KFX) /\ (XSK) e. A))

Distinct variable groups:   v,u,x,y,z,A   u,F,v,x,y,z   u,G,v,x,y,z   x,c,y,z   u,r,v,x,y,z   u,K,v,x,y,z   u,X,v,x,y,z

Proof of Theorem acdc2lem1

Step	Hyp	Ref	Expression
1		oprex 3974	. . . . . . 7 |- (KFX) e. V
2	1	rabex 2720	. . . . . 6 |- {v e. (KFX) | A.u e. (KFX) -. urv} e. V
3	2	uniex 2865	. . . . 5 |- U.{v e. (KFX) | A.u e. (KFX) -. urv} e. V
4		opreq2 3960	. . . . . . 7 |- (x = X -> (yFx) = (yFX))
5		rabeq 1805	. . . . . . . 8 |- ((yFx) = (yFX) -> {v e. (yFx) | A.u e. (yFx) -. urv} = {v e. (yFX) | A.u e. (yFx) -. urv})
6		raleq1 1783	. . . . . . . . 9 |- ((yFx) = (yFX) -> (A.u e. (yFx) -. urv <-> A.u e. (yFX) -. urv))
7	6	rabbisdv 1803	. . . . . . . 8 |- ((yFx) = (yFX) -> {v e. (yFX) | A.u e. (yFx) -. urv} = {v e. (yFX) | A.u e. (yFX) -. urv})
8	5, 7	eqtrd 1504	. . . . . . 7 |- ((yFx) = (yFX) -> {v e. (yFx) | A.u e. (yFx) -. urv} = {v e. (yFX) | A.u e. (yFX) -. urv})
9	4, 8	syl 10	. . . . . 6 |- (x = X -> {v e. (yFx) | A.u e. (yFx) -. urv} = {v e. (yFX) | A.u e. (yFX) -. urv})
10	9	unieqd 2507	. . . . 5 |- (x = X -> U.{v e. (yFx) | A.u e. (yFx) -. urv} = U.{v e. (yFX) | A.u e. (yFX) -. urv})
11		opreq1 3959	. . . . . . 7 |- (y = K -> (yFX) = (KFX))
12		rabeq 1805	. . . . . . . 8 |- ((yFX) = (KFX) -> {v e. (yFX) | A.u e. (yFX) -. urv} = {v e. (KFX) | A.u e. (yFX) -. urv})
13		raleq1 1783	. . . . . . . . 9 |- ((yFX) = (KFX) -> (A.u e. (yFX) -. urv <-> A.u e. (KFX) -. urv))
14	13	rabbisdv 1803	. . . . . . . 8 |- ((yFX) = (KFX) -> {v e. (KFX) | A.u e. (yFX) -. urv} = {v e. (KFX) | A.u e. (KFX) -. urv})
15	12, 14	eqtrd 1504	. . . . . . 7 |- ((yFX) = (KFX) -> {v e. (yFX) | A.u e. (yFX) -. urv} = {v e. (KFX) | A.u e. (KFX) -. urv})
16	11, 15	syl 10	. . . . . 6 |- (y = K -> {v e. (yFX) | A.u e. (yFX) -. urv} = {v e. (KFX) | A.u e. (KFX) -. urv})
17	16	unieqd 2507	. . . . 5 |- (y = K -> U.{v e. (yFX) | A.u e. (yFX) -. urv} = U.{v e. (KFX) | A.u e. (KFX) -. urv})
18		acdc2lem.2	. . . . 5 |- S = {<.<.x, y>., z>. | ((x e. A /\ y e. NN) /\ z = U.{v e. (yFx) | A.u e. (yFx) -. urv})}
19	3, 10, 17, 18	oprabval2 4019	. . . 4 |- ((X e. A /\ K e. NN) -> (XSK) = U.{v e. (KFX) | A.u e. (KFX) -. urv})
20	19	adantl 388	. . 3 |- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> (XSK) = U.{v e. (KFX) | A.u e. (KFX) -. urv})
21	1	wereucl 2941	. . . 4 |- ((r We A /\ (KFX) (_ A /\ (KFX) =/= (/)) -> U.{v e. (KFX) | A.u e. (KFX) -. urv} e. (KFX))
22		simpll 412	. . . 4 |- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> r We A)
23		foprrn 4026	. . . . . . . . 9 |- ((F:(NN X. A)-->(P~A \ {(/)}) /\ K e. NN /\ X e. A) -> (KFX) e. (P~A \ {(/)}))
24	23	3com23 838	. . . . . . . 8 |- ((F:(NN X. A)-->(P~A \ {(/)}) /\ X e. A /\ K e. NN) -> (KFX) e. (P~A \ {(/)}))
25	24	3expb 833	. . . . . . 7 |- ((F:(NN X. A)-->(P~A \ {(/)}) /\ (X e. A /\ K e. NN)) -> (KFX) e. (P~A \ {(/)}))
26		eldifi 2158	. . . . . . 7 |- ((KFX) e. (P~A \ {(/)}) -> (KFX) e. P~A)
27	25, 26	syl 10	. . . . . 6 |- ((F:(NN X. A)-->(P~A \ {(/)}) /\ (X e. A /\ K e. NN)) -> (KFX) e. P~A)
28		elpwi 2402	. . . . . 6 |- ((KFX) e. P~A -> (KFX) (_ A)
29	27, 28	syl 10	. . . . 5 |- ((F:(NN X. A)-->(P~A \ {(/)}) /\ (X e. A /\ K e. NN)) -> (KFX) (_ A)
30	29	adantll 392	. . . 4 |- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> (KFX) (_ A)
31		eldifn 2159	. . . . . . 7 |- ((KFX) e. (P~A \ {(/)}) -> -. (KFX) e. {(/)})
32		id 59	. . . . . . . . 9 |- ((KFX) = (/) -> (KFX) = (/))
33		0ex 2706	. . . . . . . . . 10 |- (/) e. V
34	33	snid 2431	. . . . . . . . 9 |- (/) e. {(/)}
35	32, 34	syl6eqel 1553	. . . . . . . 8 |- ((KFX) = (/) -> (KFX) e. {(/)})
36	35	necon3bi 1604	. . . . . . 7 |- (-. (KFX) e. {(/)} -> (KFX) =/= (/))
37	31, 36	syl 10	. . . . . 6 |- ((KFX) e. (P~A \ {(/)}) -> (KFX) =/= (/))
38	25, 37	syl 10	. . . . 5 |- ((F:(NN X. A)-->(P~A \ {(/)}) /\ (X e. A /\ K e. NN)) -> (KFX) =/= (/))
39	38	adantll 392	. . . 4 |- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> (KFX) =/= (/))
40	21, 22, 30, 39	syl3anc 857	. . 3 |- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> U.{v e. (KFX) | A.u e. (KFX) -. urv} e. (KFX))
41	20, 40	eqeltrd 1545	. 2 |- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> (XSK) e. (KFX))
42	30, 41	sseldd 2064	. 2 |- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> (XSK) e. A)
43	41, 42	jca 288	1 |- (((r We A /\ F:(NN X. A)-->(P~A \ {(/)})) /\ (X e. A /\ K e. NN)) -> ((XSK) e. (KFX) /\ (XSK) e. A))

Syntax hints:  -. wn 2   -> wi 3   /\ wa 223   = wceq 954   e. wcel 956   =/= wne 1582  A.wral 1642  {crab 1645  Vcvv 1807   \ cdif 2040   u. cun 2041   (_ wss 2043  (/)c0 2276  P~cpw 2397  {csn 2405  <.cop 2407  U.cuni 2498   class class class wbr 2614  Icid 2826   We wwe 2911   X. cxp 3163   |` cres 3167  -->wf 3173  (class class class)co 3954  {copab2 3955  1c1 5215  NNcn 5276   seq1 cseq1 6252

This theorem is referenced by:  acdc2lem2 7439

This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 960  ax-gen 961  ax-8 962  ax-9 963  ax-10 964  ax-11 965  ax-12 966  ax-13 967  ax-14 968  ax-17 969  ax-4 971  ax-5o 973  ax-6o 976  ax-9o 1121  ax-10o 1138  ax-16 1208  ax-11o 1216  ax-ext 1457  ax-sep 2698  ax-nul 2705  ax-pow 2737  ax-pr 2774  ax-un 2861

This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-3or 775  df-3an 776  df-ex 979  df-sb 1170  df-eu 1380  df-mo 1381  df-clab 1462  df-cleq 1467  df-clel 1470  df-ne 1584  df-ral 1646  df-rex 1647  df-reu 1648  df-rab 1649  df-v 1808  df-sbc 1938  df-csb 1998  df-dif 2045  df-un 2046