Theorem recexprlemss1u 7953

Description: The upper cut of A .P. B is a subset of the upper cut of one. Lemma for recexpr 7955. (Contributed by Jim Kingdon, 27-Dec-2019.)

Hypothesis

Ref	Expression
recexpr.1	|- B = <. { x | E. y ( x <Q y /\ ( *Q ` y ) e. ( 2nd ` A ) ) } , { x | E. y ( y <Q x /\ ( *Q ` y ) e. ( 1st ` A ) ) } >.

Assertion

Ref	Expression
recexprlemss1u	|- ( A e. P. -> ( 2nd ` ( A .P. B ) ) C_ ( 2nd ` 1P ) )

Distinct variable groups:   x, y, A   x, B, y

Proof of Theorem recexprlemss1u

Dummy variables q z w u f g are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		recexpr.1	. . . . . 6 |- B = <. { x | E. y ( x <Q y /\ ( *Q ` y ) e. ( 2nd ` A ) ) } , { x | E. y ( y <Q x /\ ( *Q ` y ) e. ( 1st ` A ) ) } >.
2	1	recexprlempr 7949	. . . . 5 |- ( A e. P. -> B e. P. )
3		df-imp 7786	. . . . . 6 |- .P. = ( y e. P. , w e. P. |-> <. { u e. Q. | E. f e. Q. E. g e. Q. ( f e. ( 1st ` y ) /\ g e. ( 1st ` w ) /\ u = ( f .Q g ) ) } , { u e. Q. | E. f e. Q. E. g e. Q. ( f e. ( 2nd ` y ) /\ g e. ( 2nd ` w ) /\ u = ( f .Q g ) ) } >. )
4		mulclnq 7693	. . . . . 6 |- ( ( f e. Q. /\ g e. Q. ) -> ( f .Q g ) e. Q. )
5	3, 4	genpelvu 7830	. . . . 5 |- ( ( A e. P. /\ B e. P. ) -> ( w e. ( 2nd ` ( A .P. B ) ) <-> E. z e. ( 2nd ` A ) E. q e. ( 2nd ` B ) w = ( z .Q q ) ) )
6	2, 5	mpdan 421	. . . 4 |- ( A e. P. -> ( w e. ( 2nd ` ( A .P. B ) ) <-> E. z e. ( 2nd ` A ) E. q e. ( 2nd ` B ) w = ( z .Q q ) ) )
7	1	recexprlemelu 7940	. . . . . . . 8 |- ( q e. ( 2nd ` B ) <-> E. y ( y <Q q /\ ( *Q ` y ) e. ( 1st ` A ) ) )
8		ltrelnq 7682	. . . . . . . . . . . . . 14 |- <Q C_ ( Q. X. Q. )
9	8	brel 4804	. . . . . . . . . . . . 13 |- ( y <Q q -> ( y e. Q. /\ q e. Q. ) )
10	9	simpld 112	. . . . . . . . . . . 12 |- ( y <Q q -> y e. Q. )
11		prop 7792	. . . . . . . . . . . . . . . . . 18 |- ( A e. P. -> <. ( 1st ` A ) , ( 2nd ` A ) >. e. P. )
12		elprnqu 7799	. . . . . . . . . . . . . . . . . 18 |- ( ( <. ( 1st ` A ) , ( 2nd ` A ) >. e. P. /\ z e. ( 2nd ` A ) ) -> z e. Q. )
13	11, 12	sylan 283	. . . . . . . . . . . . . . . . 17 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> z e. Q. )
14		ltmnqi 7720	. . . . . . . . . . . . . . . . . 18 |- ( ( y <Q q /\ z e. Q. ) -> ( z .Q y ) <Q ( z .Q q ) )
15	14	expcom 116	. . . . . . . . . . . . . . . . 17 |- ( z e. Q. -> ( y <Q q -> ( z .Q y ) <Q ( z .Q q ) ) )
16	13, 15	syl 14	. . . . . . . . . . . . . . . 16 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( y <Q q -> ( z .Q y ) <Q ( z .Q q ) ) )
17	16	adantr 276	. . . . . . . . . . . . . . 15 |- ( ( ( A e. P. /\ z e. ( 2nd ` A ) ) /\ y e. Q. ) -> ( y <Q q -> ( z .Q y ) <Q ( z .Q q ) ) )
18		prltlu 7804	. . . . . . . . . . . . . . . . . . . 20 |- ( ( <. ( 1st ` A ) , ( 2nd ` A ) >. e. P. /\ ( *Q ` y ) e. ( 1st ` A ) /\ z e. ( 2nd ` A ) ) -> ( *Q ` y ) <Q z )
19	11, 18	syl3an1 1307	. . . . . . . . . . . . . . . . . . 19 |- ( ( A e. P. /\ ( *Q ` y ) e. ( 1st ` A ) /\ z e. ( 2nd ` A ) ) -> ( *Q ` y ) <Q z )
20	19	3com23 1236	. . . . . . . . . . . . . . . . . 18 |- ( ( A e. P. /\ z e. ( 2nd ` A ) /\ ( *Q ` y ) e. ( 1st ` A ) ) -> ( *Q ` y ) <Q z )
21	20	3expia 1232	. . . . . . . . . . . . . . . . 17 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( ( *Q ` y ) e. ( 1st ` A ) -> ( *Q ` y ) <Q z ) )
22	21	adantr 276	. . . . . . . . . . . . . . . 16 |- ( ( ( A e. P. /\ z e. ( 2nd ` A ) ) /\ y e. Q. ) -> ( ( *Q ` y ) e. ( 1st ` A ) -> ( *Q ` y ) <Q z ) )
23		ltmnqi 7720	. . . . . . . . . . . . . . . . . . . . 21 |- ( ( ( *Q ` y ) <Q z /\ y e. Q. ) -> ( y .Q ( *Q ` y ) ) <Q ( y .Q z ) )
24	23	expcom 116	. . . . . . . . . . . . . . . . . . . 20 |- ( y e. Q. -> ( ( *Q ` y ) <Q z -> ( y .Q ( *Q ` y ) ) <Q ( y .Q z ) ) )
25	24	adantr 276	. . . . . . . . . . . . . . . . . . 19 |- ( ( y e. Q. /\ z e. Q. ) -> ( ( *Q ` y ) <Q z -> ( y .Q ( *Q ` y ) ) <Q ( y .Q z ) ) )
26		recidnq 7710	. . . . . . . . . . . . . . . . . . . . 21 |- ( y e. Q. -> ( y .Q ( *Q ` y ) ) = 1Q )
27	26	adantr 276	. . . . . . . . . . . . . . . . . . . 20 |- ( ( y e. Q. /\ z e. Q. ) -> ( y .Q ( *Q ` y ) ) = 1Q )
28		mulcomnqg 7700	. . . . . . . . . . . . . . . . . . . 20 |- ( ( y e. Q. /\ z e. Q. ) -> ( y .Q z ) = ( z .Q y ) )
29	27, 28	breq12d 4124	. . . . . . . . . . . . . . . . . . 19 |- ( ( y e. Q. /\ z e. Q. ) -> ( ( y .Q ( *Q ` y ) ) <Q ( y .Q z ) <-> 1Q <Q ( z .Q y ) ) )
30	25, 29	sylibd 149	. . . . . . . . . . . . . . . . . 18 |- ( ( y e. Q. /\ z e. Q. ) -> ( ( *Q ` y ) <Q z -> 1Q <Q ( z .Q y ) ) )
31	30	ancoms 268	. . . . . . . . . . . . . . . . 17 |- ( ( z e. Q. /\ y e. Q. ) -> ( ( *Q ` y ) <Q z -> 1Q <Q ( z .Q y ) ) )
32	13, 31	sylan 283	. . . . . . . . . . . . . . . 16 |- ( ( ( A e. P. /\ z e. ( 2nd ` A ) ) /\ y e. Q. ) -> ( ( *Q ` y ) <Q z -> 1Q <Q ( z .Q y ) ) )
33	22, 32	syld 45	. . . . . . . . . . . . . . 15 |- ( ( ( A e. P. /\ z e. ( 2nd ` A ) ) /\ y e. Q. ) -> ( ( *Q ` y ) e. ( 1st ` A ) -> 1Q <Q ( z .Q y ) ) )
34	17, 33	anim12d 335	. . . . . . . . . . . . . 14 |- ( ( ( A e. P. /\ z e. ( 2nd ` A ) ) /\ y e. Q. ) -> ( ( y <Q q /\ ( *Q ` y ) e. ( 1st ` A ) ) -> ( ( z .Q y ) <Q ( z .Q q ) /\ 1Q <Q ( z .Q y ) ) ) )
35		ltsonq 7715	. . . . . . . . . . . . . . . 16 |- <Q Or Q.
36	35, 8	sotri 5160	. . . . . . . . . . . . . . 15 |- ( ( 1Q <Q ( z .Q y ) /\ ( z .Q y ) <Q ( z .Q q ) ) -> 1Q <Q ( z .Q q ) )
37	36	ancoms 268	. . . . . . . . . . . . . 14 |- ( ( ( z .Q y ) <Q ( z .Q q ) /\ 1Q <Q ( z .Q y ) ) -> 1Q <Q ( z .Q q ) )
38	34, 37	syl6 33	. . . . . . . . . . . . 13 |- ( ( ( A e. P. /\ z e. ( 2nd ` A ) ) /\ y e. Q. ) -> ( ( y <Q q /\ ( *Q ` y ) e. ( 1st ` A ) ) -> 1Q <Q ( z .Q q ) ) )
39	38	exp4b 367	. . . . . . . . . . . 12 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( y e. Q. -> ( y <Q q -> ( ( *Q ` y ) e. ( 1st ` A ) -> 1Q <Q ( z .Q q ) ) ) ) )
40	10, 39	syl5 32	. . . . . . . . . . 11 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( y <Q q -> ( y <Q q -> ( ( *Q ` y ) e. ( 1st ` A ) -> 1Q <Q ( z .Q q ) ) ) ) )
41	40	pm2.43d 50	. . . . . . . . . 10 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( y <Q q -> ( ( *Q ` y ) e. ( 1st ` A ) -> 1Q <Q ( z .Q q ) ) ) )
42	41	impd 254	. . . . . . . . 9 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( ( y <Q q /\ ( *Q ` y ) e. ( 1st ` A ) ) -> 1Q <Q ( z .Q q ) ) )
43	42	exlimdv 1868	. . . . . . . 8 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( E. y ( y <Q q /\ ( *Q ` y ) e. ( 1st ` A ) ) -> 1Q <Q ( z .Q q ) ) )
44	7, 43	biimtrid 152	. . . . . . 7 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( q e. ( 2nd ` B ) -> 1Q <Q ( z .Q q ) ) )
45		breq2 4115	. . . . . . . 8 |- ( w = ( z .Q q ) -> ( 1Q <Q w <-> 1Q <Q ( z .Q q ) ) )
46	45	biimprcd 160	. . . . . . 7 |- ( 1Q <Q ( z .Q q ) -> ( w = ( z .Q q ) -> 1Q <Q w ) )
47	44, 46	syl6 33	. . . . . 6 |- ( ( A e. P. /\ z e. ( 2nd ` A ) ) -> ( q e. ( 2nd ` B ) -> ( w = ( z .Q q ) -> 1Q <Q w ) ) )
48	47	expimpd 363	. . . . 5 |- ( A e. P. -> ( ( z e. ( 2nd ` A ) /\ q e. ( 2nd ` B ) ) -> ( w = ( z .Q q ) -> 1Q <Q w ) ) )
49	48	rexlimdvv 2669	. . . 4 |- ( A e. P. -> ( E. z e. ( 2nd ` A ) E. q e. ( 2nd ` B ) w = ( z .Q q ) -> 1Q <Q w ) )
50	6, 49	sylbid 150	. . 3 |- ( A e. P. -> ( w e. ( 2nd ` ( A .P. B ) ) -> 1Q <Q w ) )
51		1pru 7873	. . . 4 |- ( 2nd ` 1P ) = { w | 1Q <Q w }
52	51	abeq2i 2345	. . 3 |- ( w e. ( 2nd ` 1P ) <-> 1Q <Q w )
53	50, 52	imbitrrdi 162	. 2 |- ( A e. P. -> ( w e. ( 2nd ` ( A .P. B ) ) -> w e. ( 2nd ` 1P ) ) )
54	53	ssrdv 3246	1 |- ( A e. P. -> ( 2nd ` ( A .P. B ) ) C_ ( 2nd ` 1P ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1398   E.wex 1541   e. wcel 2205   {cab 2220   E.wrex 2523   C_ wss 3213   <.cop 3694   class class class wbr 4111   ` cfv 5354  (class class class)co 6052   1stc1st 6334   2ndc2nd 6335   Q.cnq 7597   1Qc1q 7598   .Q cmq 7600   *Qcrq 7601   <Q cltq 7602   P.cnp 7608   1Pc1p 7609   .P. cmp 7611

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-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2207  ax-14 2208  ax-ext 2216  ax-coll 4227  ax-sep 4230  ax-nul 4238  ax-pow 4289  ax-pr 4324  ax-un 4556  ax-setind 4661  ax-iinf 4712

This theorem depends on definitions:  df-bi 117  df-dc 843  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-ral 2527  df-rex 2528  df-reu 2529  df-rab 2531  df-v 2817  df-sbc 3045  df-csb 3141  df-dif 3215  df-un 3217  df-in 3219  df-ss 3226  df-nul 3511  df-pw 3673  df-sn 3697  df-pr 3698  df-op 3700  df-uni 3917  df-int 3952  df-iun 3995  df-br 4112  df-opab 4174  df-mpt 4175  df-tr 4211  df-eprel 4412  df-id 4416  df-po 4419  df-iso 4420  df-iord 4489  df-on 4491  df-suc 4494  df-iom 4715  df-xp 4757  df-rel 4758  df-cnv 4759  df-co 4760  df-dm 4761  df-rn 4762  df-res 4763  df-ima 4764  df-iota 5314  df-fun 5356  df-fn 5357  df-f 5358  df-f1 5359  df-fo 5360  df-f1o 5361  df-fv 5362  df-ov 6055  df-oprab 6056  df-mpo 6057  df-1st 6336  df-2nd 6337  df-recs 6538  df-irdg 6603  df-1o 6649  df-oadd 6653  df-omul 6654  df-er 6769  df-ec 6771  df-qs 6775  df-ni 7621  df-pli 7622  df-mi 7623  df-lti 7624  df-plpq 7661  df-mpq 7662  df-enq 7664  df-nqqs 7665  df-plqqs 7666  df-mqqs 7667  df-1nqqs 7668  df-rq 7669  df-ltnqqs 7670  df-inp 7783  df-i1p 7784  df-imp 7786

This theorem is referenced by:  recexprlemex  7954