Theorem prmuloc2 7830

Description: Positive reals are multiplicatively located. This is a variation of prmuloc 7829 which only constructs one (named) point and is therefore often easier to work with. It states that given a ratio B, there are elements of the lower and upper cut which have exactly that ratio between them. (Contributed by Jim Kingdon, 28-Dec-2019.)

Assertion

Ref	Expression
prmuloc2	|- ( ( <. L , U >. e. P. /\ 1Q <Q B ) -> E. x e. L ( x .Q B ) e. U )

Distinct variable groups:   x, B   x, L   x, U

Proof of Theorem prmuloc2

Dummy variable y is distinct from all other variables.

Step	Hyp	Ref	Expression
1		prmuloc 7829	. 2 |- ( ( <. L , U >. e. P. /\ 1Q <Q B ) -> E. x e. Q. E. y e. Q. ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) )
2		nfv 1577	. . 3 |- F/ x ( <. L , U >. e. P. /\ 1Q <Q B )
3		nfre1 2576	. . 3 |- F/ x E. x e. L ( x .Q B ) e. U
4		simpr1 1030	. . . . . . . 8 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> x e. L )
5		simpr3 1032	. . . . . . . . . 10 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> ( y .Q 1Q ) <Q ( x .Q B ) )
6		simplrr 538	. . . . . . . . . . 11 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> y e. Q. )
7		mulidnq 7652	. . . . . . . . . . 11 |- ( y e. Q. -> ( y .Q 1Q ) = y )
8		breq1 4096	. . . . . . . . . . 11 |- ( ( y .Q 1Q ) = y -> ( ( y .Q 1Q ) <Q ( x .Q B ) <-> y <Q ( x .Q B ) ) )
9	6, 7, 8	3syl 17	. . . . . . . . . 10 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> ( ( y .Q 1Q ) <Q ( x .Q B ) <-> y <Q ( x .Q B ) ) )
10	5, 9	mpbid 147	. . . . . . . . 9 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> y <Q ( x .Q B ) )
11		simplll 535	. . . . . . . . . 10 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> <. L , U >. e. P. )
12		simpr2 1031	. . . . . . . . . 10 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> y e. U )
13		prcunqu 7748	. . . . . . . . . 10 |- ( ( <. L , U >. e. P. /\ y e. U ) -> ( y <Q ( x .Q B ) -> ( x .Q B ) e. U ) )
14	11, 12, 13	syl2anc 411	. . . . . . . . 9 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> ( y <Q ( x .Q B ) -> ( x .Q B ) e. U ) )
15	10, 14	mpd 13	. . . . . . . 8 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> ( x .Q B ) e. U )
16		rspe 2582	. . . . . . . 8 |- ( ( x e. L /\ ( x .Q B ) e. U ) -> E. x e. L ( x .Q B ) e. U )
17	4, 15, 16	syl2anc 411	. . . . . . 7 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) /\ ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) ) -> E. x e. L ( x .Q B ) e. U )
18	17	ex 115	. . . . . 6 |- ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ ( x e. Q. /\ y e. Q. ) ) -> ( ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) -> E. x e. L ( x .Q B ) e. U ) )
19	18	anassrs 400	. . . . 5 |- ( ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ x e. Q. ) /\ y e. Q. ) -> ( ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) -> E. x e. L ( x .Q B ) e. U ) )
20	19	rexlimdva 2651	. . . 4 |- ( ( ( <. L , U >. e. P. /\ 1Q <Q B ) /\ x e. Q. ) -> ( E. y e. Q. ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) -> E. x e. L ( x .Q B ) e. U ) )
21	20	ex 115	. . 3 |- ( ( <. L , U >. e. P. /\ 1Q <Q B ) -> ( x e. Q. -> ( E. y e. Q. ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) -> E. x e. L ( x .Q B ) e. U ) ) )
22	2, 3, 21	rexlimd 2648	. 2 |- ( ( <. L , U >. e. P. /\ 1Q <Q B ) -> ( E. x e. Q. E. y e. Q. ( x e. L /\ y e. U /\ ( y .Q 1Q ) <Q ( x .Q B ) ) -> E. x e. L ( x .Q B ) e. U ) )
23	1, 22	mpd 13	1 |- ( ( <. L , U >. e. P. /\ 1Q <Q B ) -> E. x e. L ( x .Q B ) e. U )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   /\ w3a 1005   = wceq 1398   e. wcel 2202   E.wrex 2512   <.cop 3676   class class class wbr 4093  (class class class)co 6028   Q.cnq 7543   1Qc1q 7544   .Q cmq 7546   <Q cltq 7548   P.cnp 7554

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 2204  ax-14 2205  ax-ext 2213  ax-coll 4209  ax-sep 4212  ax-nul 4220  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641  ax-iinf 4692

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 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-ral 2516  df-rex 2517  df-reu 2518  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-nul 3497  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-iun 3977  df-br 4094  df-opab 4156  df-mpt 4157  df-tr 4193  df-eprel 4392  df-id 4396  df-po 4399  df-iso 4400  df-iord 4469  df-on 4471  df-suc 4474  df-iom 4695  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341  df-ov 6031  df-oprab 6032  df-mpo 6033  df-1st 6312  df-2nd 6313  df-recs 6514  df-irdg 6579  df-1o 6625  df-2o 6626  df-oadd 6629  df-omul 6630  df-er 6745  df-ec 6747  df-qs 6751  df-ni 7567  df-pli 7568  df-mi 7569  df-lti 7570  df-plpq 7607  df-mpq 7608  df-enq 7610  df-nqqs 7611  df-plqqs 7612  df-mqqs 7613  df-1nqqs 7614  df-rq 7615  df-ltnqqs 7616  df-enq0 7687  df-nq0 7688  df-0nq0 7689  df-plq0 7690  df-mq0 7691  df-inp 7729

This theorem is referenced by:  recexprlem1ssl  7896  recexprlem1ssu  7897