Theorem prmuloc2 7375

Description: Positive reals are multiplicatively located. This is a variation of prmuloc 7374 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 7374	. 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 1508	. . 3 |- F/ x ( <. L , U >. e. P. /\ 1Q <Q B )
3		nfre1 2476	. . 3 |- F/ x E. x e. L ( x .Q B ) e. U
4		simpr1 987	. . . . . . . 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 989	. . . . . . . . . 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 525	. . . . . . . . . . 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 7197	. . . . . . . . . . 11 |- ( y e. Q. -> ( y .Q 1Q ) = y )
8		breq1 3932	. . . . . . . . . . 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 146	. . . . . . . . 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 522	. . . . . . . . . 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 988	. . . . . . . . . 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 7293	. . . . . . . . . 10 |- ( ( <. L , U >. e. P. /\ y e. U ) -> ( y <Q ( x .Q B ) -> ( x .Q B ) e. U ) )
14	11, 12, 13	syl2anc 408	. . . . . . . . 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 2481	. . . . . . . 8 |- ( ( x e. L /\ ( x .Q B ) e. U ) -> E. x e. L ( x .Q B ) e. U )
17	4, 15, 16	syl2anc 408	. . . . . . 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 114	. . . . . 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 397	. . . . 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 2549	. . . 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 114	. . 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 2546	. 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 103   <-> wb 104   /\ w3a 962   = wceq 1331   e. wcel 1480   E.wrex 2417   <.cop 3530   class class class wbr 3929  (class class class)co 5774   Q.cnq 7088   1Qc1q 7089   .Q cmq 7091   <Q cltq 7093   P.cnp 7099

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 603  ax-in2 604  ax-io 698  ax-5 1423  ax-7 1424  ax-gen 1425  ax-ie1 1469  ax-ie2 1470  ax-8 1482  ax-10 1483  ax-11 1484  ax-i12 1485  ax-bndl 1486  ax-4 1487  ax-13 1491  ax-14 1492  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2121  ax-coll 4043  ax-sep 4046  ax-nul 4054  ax-pow 4098  ax-pr 4131  ax-un 4355  ax-setind 4452  ax-iinf 4502

This theorem depends on definitions:  df-bi 116  df-dc 820  df-3or 963  df-3an 964  df-tru 1334  df-fal 1337  df-nf 1437  df-sb 1736  df-eu 2002  df-mo 2003  df-clab 2126  df-cleq 2132  df-clel 2135  df-nfc 2270  df-ne 2309  df-ral 2421  df-rex 2422  df-reu 2423  df-rab 2425  df-v 2688  df-sbc 2910  df-csb 3004  df-dif 3073  df-un 3075  df-in 3077  df-ss 3084  df-nul 3364  df-pw 3512  df-sn 3533  df-pr 3534  df-op 3536  df-uni 3737  df-int 3772  df-iun 3815  df-br 3930  df-opab 3990  df-mpt 3991  df-tr 4027  df-eprel 4211  df-id 4215  df-po 4218  df-iso 4219  df-iord 4288  df-on 4290  df-suc 4293  df-iom 4505  df-xp 4545  df-rel 4546  df-cnv 4547  df-co 4548  df-dm 4549  df-rn 4550  df-res 4551  df-ima 4552  df-iota 5088  df-fun 5125  df-fn 5126  df-f 5127  df-f1 5128  df-fo 5129  df-f1o 5130  df-fv 5131  df-ov 5777  df-oprab 5778  df-mpo 5779  df-1st 6038  df-2nd 6039  df-recs 6202  df-irdg 6267  df-1o 6313  df-2o 6314  df-oadd 6317  df-omul 6318  df-er 6429  df-ec 6431  df-qs 6435  df-ni 7112  df-pli 7113  df-mi 7114  df-lti 7115  df-plpq 7152  df-mpq 7153  df-enq 7155  df-nqqs 7156  df-plqqs 7157  df-mqqs 7158  df-1nqqs 7159  df-rq 7160  df-ltnqqs 7161  df-enq0 7232  df-nq0 7233  df-0nq0 7234  df-plq0 7235  df-mq0 7236  df-inp 7274

This theorem is referenced by:  recexprlem1ssl  7441  recexprlem1ssu  7442