Theorem nqprloc 7507

Description: A cut produced from a rational is located. Lemma for nqprlu 7509. (Contributed by Jim Kingdon, 8-Dec-2019.)

Assertion

Ref	Expression
nqprloc	|- ( A e. Q. -> A. q e. Q. A. r e. Q. ( q <Q r -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )

Distinct variable group:   x, A, r, q

Proof of Theorem nqprloc

Step	Hyp	Ref	Expression
1		nqtri3or 7358	. . . . . . 7 |- ( ( q e. Q. /\ A e. Q. ) -> ( q <Q A \/ q = A \/ A <Q q ) )
2	1	ancoms 266	. . . . . 6 |- ( ( A e. Q. /\ q e. Q. ) -> ( q <Q A \/ q = A \/ A <Q q ) )
3	2	ad2antrr 485	. . . . 5 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( q <Q A \/ q = A \/ A <Q q ) )
4		vex 2733	. . . . . . . . . 10 |- q e. _V
5		breq1 3992	. . . . . . . . . 10 |- ( x = q -> ( x <Q A <-> q <Q A ) )
6	4, 5	elab 2874	. . . . . . . . 9 |- ( q e. { x | x <Q A } <-> q <Q A )
7	6	biimpri 132	. . . . . . . 8 |- ( q <Q A -> q e. { x | x <Q A } )
8	7	orcd 728	. . . . . . 7 |- ( q <Q A -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) )
9	8	a1i 9	. . . . . 6 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( q <Q A -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )
10		simpr 109	. . . . . . . 8 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> q <Q r )
11		breq1 3992	. . . . . . . 8 |- ( q = A -> ( q <Q r <-> A <Q r ) )
12	10, 11	syl5ibcom 154	. . . . . . 7 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( q = A -> A <Q r ) )
13		vex 2733	. . . . . . . . 9 |- r e. _V
14		breq2 3993	. . . . . . . . 9 |- ( x = r -> ( A <Q x <-> A <Q r ) )
15	13, 14	elab 2874	. . . . . . . 8 |- ( r e. { x | A <Q x } <-> A <Q r )
16		olc 706	. . . . . . . 8 |- ( r e. { x | A <Q x } -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) )
17	15, 16	sylbir 134	. . . . . . 7 |- ( A <Q r -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) )
18	12, 17	syl6 33	. . . . . 6 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( q = A -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )
19		ltsonq 7360	. . . . . . . . . 10 |- <Q Or Q.
20		ltrelnq 7327	. . . . . . . . . 10 |- <Q C_ ( Q. X. Q. )
21	19, 20	sotri 5006	. . . . . . . . 9 |- ( ( A <Q q /\ q <Q r ) -> A <Q r )
22	21, 17	syl 14	. . . . . . . 8 |- ( ( A <Q q /\ q <Q r ) -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) )
23	22	expcom 115	. . . . . . 7 |- ( q <Q r -> ( A <Q q -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )
24	23	adantl 275	. . . . . 6 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( A <Q q -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )
25	9, 18, 24	3jaod 1299	. . . . 5 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( ( q <Q A \/ q = A \/ A <Q q ) -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )
26	3, 25	mpd 13	. . . 4 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) )
27	26	ex 114	. . 3 |- ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) -> ( q <Q r -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )
28	27	ralrimiva 2543	. 2 |- ( ( A e. Q. /\ q e. Q. ) -> A. r e. Q. ( q <Q r -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )
29	28	ralrimiva 2543	1 |- ( A e. Q. -> A. q e. Q. A. r e. Q. ( q <Q r -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )

Syntax hints:   -> wi 4   /\ wa 103   \/ wo 703   \/ w3o 972   = wceq 1348   e. wcel 2141   {cab 2156   A.wral 2448   class class class wbr 3989   Q.cnq 7242   <Q cltq 7247

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 609  ax-in2 610  ax-io 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-13 2143  ax-14 2144  ax-ext 2152  ax-coll 4104  ax-sep 4107  ax-nul 4115  ax-pow 4160  ax-pr 4194  ax-un 4418  ax-setind 4521  ax-iinf 4572

This theorem depends on definitions:  df-bi 116  df-dc 830  df-3or 974  df-3an 975  df-tru 1351  df-fal 1354  df-nf 1454  df-sb 1756  df-eu 2022  df-mo 2023  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-ne 2341  df-ral 2453  df-rex 2454  df-reu 2455  df-rab 2457  df-v 2732  df-sbc 2956  df-csb 3050  df-dif 3123  df-un 3125  df-in 3127  df-ss 3134  df-nul 3415  df-pw 3568  df-sn 3589  df-pr 3590  df-op 3592  df-uni 3797  df-int 3832  df-iun 3875  df-br 3990  df-opab 4051  df-mpt 4052  df-tr 4088  df-eprel 4274  df-id 4278  df-po 4281  df-iso 4282  df-iord 4351  df-on 4353  df-suc 4356  df-iom 4575  df-xp 4617  df-rel 4618  df-cnv 4619  df-co 4620  df-dm 4621  df-rn 4622  df-res 4623  df-ima 4624  df-iota 5160  df-fun 5200  df-fn 5201  df-f 5202  df-f1 5203  df-fo 5204  df-f1o 5205  df-fv 5206  df-ov 5856  df-oprab 5857  df-mpo 5858  df-1st 6119  df-2nd 6120  df-recs 6284  df-irdg 6349  df-oadd 6399  df-omul 6400  df-er 6513  df-ec 6515  df-qs 6519  df-ni 7266  df-mi 7268  df-lti 7269  df-enq 7309  df-nqqs 7310  df-ltnqqs 7315

This theorem is referenced by:  nqprxx  7508