Theorem nqprloc 7693

Description: A cut produced from a rational is located. Lemma for nqprlu 7695. (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 7544	. . . . . . 7 |- ( ( q e. Q. /\ A e. Q. ) -> ( q <Q A \/ q = A \/ A <Q q ) )
2	1	ancoms 268	. . . . . 6 |- ( ( A e. Q. /\ q e. Q. ) -> ( q <Q A \/ q = A \/ A <Q q ) )
3	2	ad2antrr 488	. . . . 5 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( q <Q A \/ q = A \/ A <Q q ) )
4		vex 2779	. . . . . . . . . 10 |- q e. _V
5		breq1 4062	. . . . . . . . . 10 |- ( x = q -> ( x <Q A <-> q <Q A ) )
6	4, 5	elab 2924	. . . . . . . . 9 |- ( q e. { x | x <Q A } <-> q <Q A )
7	6	biimpri 133	. . . . . . . 8 |- ( q <Q A -> q e. { x | x <Q A } )
8	7	orcd 735	. . . . . . 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 110	. . . . . . . 8 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> q <Q r )
11		breq1 4062	. . . . . . . 8 |- ( q = A -> ( q <Q r <-> A <Q r ) )
12	10, 11	syl5ibcom 155	. . . . . . 7 |- ( ( ( ( A e. Q. /\ q e. Q. ) /\ r e. Q. ) /\ q <Q r ) -> ( q = A -> A <Q r ) )
13		vex 2779	. . . . . . . . 9 |- r e. _V
14		breq2 4063	. . . . . . . . 9 |- ( x = r -> ( A <Q x <-> A <Q r ) )
15	13, 14	elab 2924	. . . . . . . 8 |- ( r e. { x | A <Q x } <-> A <Q r )
16		olc 713	. . . . . . . 8 |- ( r e. { x | A <Q x } -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) )
17	15, 16	sylbir 135	. . . . . . 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 7546	. . . . . . . . . 10 |- <Q Or Q.
20		ltrelnq 7513	. . . . . . . . . 10 |- <Q C_ ( Q. X. Q. )
21	19, 20	sotri 5097	. . . . . . . . 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 116	. . . . . . 7 |- ( q <Q r -> ( A <Q q -> ( q e. { x | x <Q A } \/ r e. { x | A <Q x } ) ) )
24	23	adantl 277	. . . . . 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 1317	. . . . 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 115	. . 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 2581	. 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 2581	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 104   \/ wo 710   \/ w3o 980   = wceq 1373   e. wcel 2178   {cab 2193   A.wral 2486   class class class wbr 4059   Q.cnq 7428   <Q cltq 7433

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 615  ax-in2 616  ax-io 711  ax-5 1471  ax-7 1472  ax-gen 1473  ax-ie1 1517  ax-ie2 1518  ax-8 1528  ax-10 1529  ax-11 1530  ax-i12 1531  ax-bndl 1533  ax-4 1534  ax-17 1550  ax-i9 1554  ax-ial 1558  ax-i5r 1559  ax-13 2180  ax-14 2181  ax-ext 2189  ax-coll 4175  ax-sep 4178  ax-nul 4186  ax-pow 4234  ax-pr 4269  ax-un 4498  ax-setind 4603  ax-iinf 4654

This theorem depends on definitions:  df-bi 117  df-dc 837  df-3or 982  df-3an 983  df-tru 1376  df-fal 1379  df-nf 1485  df-sb 1787  df-eu 2058  df-mo 2059  df-clab 2194  df-cleq 2200  df-clel 2203  df-nfc 2339  df-ne 2379  df-ral 2491  df-rex 2492  df-reu 2493  df-rab 2495  df-v 2778  df-sbc 3006  df-csb 3102  df-dif 3176  df-un 3178  df-in 3180  df-ss 3187  df-nul 3469  df-pw 3628  df-sn 3649  df-pr 3650  df-op 3652  df-uni 3865  df-int 3900  df-iun 3943  df-br 4060  df-opab 4122  df-mpt 4123  df-tr 4159  df-eprel 4354  df-id 4358  df-po 4361  df-iso 4362  df-iord 4431  df-on 4433  df-suc 4436  df-iom 4657  df-xp 4699  df-rel 4700  df-cnv 4701  df-co 4702  df-dm 4703  df-rn 4704  df-res 4705  df-ima 4706  df-iota 5251  df-fun 5292  df-fn 5293  df-f 5294  df-f1 5295  df-fo 5296  df-f1o 5297  df-fv 5298  df-ov 5970  df-oprab 5971  df-mpo 5972  df-1st 6249  df-2nd 6250  df-recs 6414  df-irdg 6479  df-oadd 6529  df-omul 6530  df-er 6643  df-ec 6645  df-qs 6649  df-ni 7452  df-mi 7454  df-lti 7455  df-enq 7495  df-nqqs 7496  df-ltnqqs 7501

This theorem is referenced by:  nqprxx  7694