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Theorem recexprlemloc 7340
Description: 𝐵 is located. Lemma for recexpr 7347. (Contributed by Jim Kingdon, 27-Dec-2019.)
Hypothesis
Ref Expression
recexpr.1 𝐵 = ⟨{𝑥 ∣ ∃𝑦(𝑥 <Q 𝑦 ∧ (*Q𝑦) ∈ (2nd𝐴))}, {𝑥 ∣ ∃𝑦(𝑦 <Q 𝑥 ∧ (*Q𝑦) ∈ (1st𝐴))}⟩
Assertion
Ref Expression
recexprlemloc (𝐴P → ∀𝑞Q𝑟Q (𝑞 <Q 𝑟 → (𝑞 ∈ (1st𝐵) ∨ 𝑟 ∈ (2nd𝐵))))
Distinct variable groups:   𝑟,𝑞,𝑥,𝑦,𝐴   𝐵,𝑞,𝑟,𝑥,𝑦

Proof of Theorem recexprlemloc
Dummy variables 𝑣 𝑢 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 prop 7184 . . . . . . . . 9 (𝐴P → ⟨(1st𝐴), (2nd𝐴)⟩ ∈ P)
2 prnmaxl 7197 . . . . . . . . 9 ((⟨(1st𝐴), (2nd𝐴)⟩ ∈ P ∧ (*Q𝑟) ∈ (1st𝐴)) → ∃𝑢 ∈ (1st𝐴)(*Q𝑟) <Q 𝑢)
31, 2sylan 279 . . . . . . . 8 ((𝐴P ∧ (*Q𝑟) ∈ (1st𝐴)) → ∃𝑢 ∈ (1st𝐴)(*Q𝑟) <Q 𝑢)
43adantlr 464 . . . . . . 7 (((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) → ∃𝑢 ∈ (1st𝐴)(*Q𝑟) <Q 𝑢)
5 simprr 502 . . . . . . . . . 10 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → (*Q𝑟) <Q 𝑢)
6 elprnql 7190 . . . . . . . . . . . . . 14 ((⟨(1st𝐴), (2nd𝐴)⟩ ∈ P𝑢 ∈ (1st𝐴)) → 𝑢Q)
71, 6sylan 279 . . . . . . . . . . . . 13 ((𝐴P𝑢 ∈ (1st𝐴)) → 𝑢Q)
87ad2ant2r 496 . . . . . . . . . . . 12 (((𝐴P𝑞 <Q 𝑟) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → 𝑢Q)
98adantlr 464 . . . . . . . . . . 11 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → 𝑢Q)
10 recrecnq 7103 . . . . . . . . . . 11 (𝑢Q → (*Q‘(*Q𝑢)) = 𝑢)
119, 10syl 14 . . . . . . . . . 10 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → (*Q‘(*Q𝑢)) = 𝑢)
125, 11breqtrrd 3901 . . . . . . . . 9 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → (*Q𝑟) <Q (*Q‘(*Q𝑢)))
13 recclnq 7101 . . . . . . . . . . 11 (𝑢Q → (*Q𝑢) ∈ Q)
149, 13syl 14 . . . . . . . . . 10 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → (*Q𝑢) ∈ Q)
15 ltrelnq 7074 . . . . . . . . . . . . . 14 <Q ⊆ (Q × Q)
1615brel 4529 . . . . . . . . . . . . 13 (𝑞 <Q 𝑟 → (𝑞Q𝑟Q))
1716adantl 273 . . . . . . . . . . . 12 ((𝐴P𝑞 <Q 𝑟) → (𝑞Q𝑟Q))
1817ad2antrr 475 . . . . . . . . . . 11 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → (𝑞Q𝑟Q))
1918simprd 113 . . . . . . . . . 10 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → 𝑟Q)
20 ltrnqg 7129 . . . . . . . . . 10 (((*Q𝑢) ∈ Q𝑟Q) → ((*Q𝑢) <Q 𝑟 ↔ (*Q𝑟) <Q (*Q‘(*Q𝑢))))
2114, 19, 20syl2anc 406 . . . . . . . . 9 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → ((*Q𝑢) <Q 𝑟 ↔ (*Q𝑟) <Q (*Q‘(*Q𝑢))))
2212, 21mpbird 166 . . . . . . . 8 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → (*Q𝑢) <Q 𝑟)
23 simprl 501 . . . . . . . . 9 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → 𝑢 ∈ (1st𝐴))
2411, 23eqeltrd 2176 . . . . . . . 8 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → (*Q‘(*Q𝑢)) ∈ (1st𝐴))
25 breq1 3878 . . . . . . . . . . . 12 (𝑦 = (*Q𝑢) → (𝑦 <Q 𝑟 ↔ (*Q𝑢) <Q 𝑟))
26 fveq2 5353 . . . . . . . . . . . . 13 (𝑦 = (*Q𝑢) → (*Q𝑦) = (*Q‘(*Q𝑢)))
2726eleq1d 2168 . . . . . . . . . . . 12 (𝑦 = (*Q𝑢) → ((*Q𝑦) ∈ (1st𝐴) ↔ (*Q‘(*Q𝑢)) ∈ (1st𝐴)))
2825, 27anbi12d 460 . . . . . . . . . . 11 (𝑦 = (*Q𝑢) → ((𝑦 <Q 𝑟 ∧ (*Q𝑦) ∈ (1st𝐴)) ↔ ((*Q𝑢) <Q 𝑟 ∧ (*Q‘(*Q𝑢)) ∈ (1st𝐴))))
2928spcegv 2729 . . . . . . . . . 10 ((*Q𝑢) ∈ Q → (((*Q𝑢) <Q 𝑟 ∧ (*Q‘(*Q𝑢)) ∈ (1st𝐴)) → ∃𝑦(𝑦 <Q 𝑟 ∧ (*Q𝑦) ∈ (1st𝐴))))
30 recexpr.1 . . . . . . . . . . 11 𝐵 = ⟨{𝑥 ∣ ∃𝑦(𝑥 <Q 𝑦 ∧ (*Q𝑦) ∈ (2nd𝐴))}, {𝑥 ∣ ∃𝑦(𝑦 <Q 𝑥 ∧ (*Q𝑦) ∈ (1st𝐴))}⟩
3130recexprlemelu 7332 . . . . . . . . . 10 (𝑟 ∈ (2nd𝐵) ↔ ∃𝑦(𝑦 <Q 𝑟 ∧ (*Q𝑦) ∈ (1st𝐴)))
3229, 31syl6ibr 161 . . . . . . . . 9 ((*Q𝑢) ∈ Q → (((*Q𝑢) <Q 𝑟 ∧ (*Q‘(*Q𝑢)) ∈ (1st𝐴)) → 𝑟 ∈ (2nd𝐵)))
3314, 32syl 14 . . . . . . . 8 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → (((*Q𝑢) <Q 𝑟 ∧ (*Q‘(*Q𝑢)) ∈ (1st𝐴)) → 𝑟 ∈ (2nd𝐵)))
3422, 24, 33mp2and 427 . . . . . . 7 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) ∧ (𝑢 ∈ (1st𝐴) ∧ (*Q𝑟) <Q 𝑢)) → 𝑟 ∈ (2nd𝐵))
354, 34rexlimddv 2513 . . . . . 6 (((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) → 𝑟 ∈ (2nd𝐵))
3635olcd 694 . . . . 5 (((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑟) ∈ (1st𝐴)) → (𝑞 ∈ (1st𝐵) ∨ 𝑟 ∈ (2nd𝐵)))
37 prnminu 7198 . . . . . . . . 9 ((⟨(1st𝐴), (2nd𝐴)⟩ ∈ P ∧ (*Q𝑞) ∈ (2nd𝐴)) → ∃𝑣 ∈ (2nd𝐴)𝑣 <Q (*Q𝑞))
381, 37sylan 279 . . . . . . . 8 ((𝐴P ∧ (*Q𝑞) ∈ (2nd𝐴)) → ∃𝑣 ∈ (2nd𝐴)𝑣 <Q (*Q𝑞))
3938adantlr 464 . . . . . . 7 (((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) → ∃𝑣 ∈ (2nd𝐴)𝑣 <Q (*Q𝑞))
40 elprnqu 7191 . . . . . . . . . . . . . 14 ((⟨(1st𝐴), (2nd𝐴)⟩ ∈ P𝑣 ∈ (2nd𝐴)) → 𝑣Q)
411, 40sylan 279 . . . . . . . . . . . . 13 ((𝐴P𝑣 ∈ (2nd𝐴)) → 𝑣Q)
4241adantlr 464 . . . . . . . . . . . 12 (((𝐴P𝑞 <Q 𝑟) ∧ 𝑣 ∈ (2nd𝐴)) → 𝑣Q)
4342ad2ant2r 496 . . . . . . . . . . 11 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → 𝑣Q)
44 recrecnq 7103 . . . . . . . . . . 11 (𝑣Q → (*Q‘(*Q𝑣)) = 𝑣)
4543, 44syl 14 . . . . . . . . . 10 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → (*Q‘(*Q𝑣)) = 𝑣)
46 simprr 502 . . . . . . . . . 10 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → 𝑣 <Q (*Q𝑞))
4745, 46eqbrtrd 3895 . . . . . . . . 9 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → (*Q‘(*Q𝑣)) <Q (*Q𝑞))
4817ad2antrr 475 . . . . . . . . . . 11 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → (𝑞Q𝑟Q))
4948simpld 111 . . . . . . . . . 10 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → 𝑞Q)
50 recclnq 7101 . . . . . . . . . . 11 (𝑣Q → (*Q𝑣) ∈ Q)
5143, 50syl 14 . . . . . . . . . 10 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → (*Q𝑣) ∈ Q)
52 ltrnqg 7129 . . . . . . . . . 10 ((𝑞Q ∧ (*Q𝑣) ∈ Q) → (𝑞 <Q (*Q𝑣) ↔ (*Q‘(*Q𝑣)) <Q (*Q𝑞)))
5349, 51, 52syl2anc 406 . . . . . . . . 9 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → (𝑞 <Q (*Q𝑣) ↔ (*Q‘(*Q𝑣)) <Q (*Q𝑞)))
5447, 53mpbird 166 . . . . . . . 8 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → 𝑞 <Q (*Q𝑣))
55 simprl 501 . . . . . . . . 9 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → 𝑣 ∈ (2nd𝐴))
5645, 55eqeltrd 2176 . . . . . . . 8 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → (*Q‘(*Q𝑣)) ∈ (2nd𝐴))
57 breq2 3879 . . . . . . . . . . . 12 (𝑦 = (*Q𝑣) → (𝑞 <Q 𝑦𝑞 <Q (*Q𝑣)))
58 fveq2 5353 . . . . . . . . . . . . 13 (𝑦 = (*Q𝑣) → (*Q𝑦) = (*Q‘(*Q𝑣)))
5958eleq1d 2168 . . . . . . . . . . . 12 (𝑦 = (*Q𝑣) → ((*Q𝑦) ∈ (2nd𝐴) ↔ (*Q‘(*Q𝑣)) ∈ (2nd𝐴)))
6057, 59anbi12d 460 . . . . . . . . . . 11 (𝑦 = (*Q𝑣) → ((𝑞 <Q 𝑦 ∧ (*Q𝑦) ∈ (2nd𝐴)) ↔ (𝑞 <Q (*Q𝑣) ∧ (*Q‘(*Q𝑣)) ∈ (2nd𝐴))))
6160spcegv 2729 . . . . . . . . . 10 ((*Q𝑣) ∈ Q → ((𝑞 <Q (*Q𝑣) ∧ (*Q‘(*Q𝑣)) ∈ (2nd𝐴)) → ∃𝑦(𝑞 <Q 𝑦 ∧ (*Q𝑦) ∈ (2nd𝐴))))
6230recexprlemell 7331 . . . . . . . . . 10 (𝑞 ∈ (1st𝐵) ↔ ∃𝑦(𝑞 <Q 𝑦 ∧ (*Q𝑦) ∈ (2nd𝐴)))
6361, 62syl6ibr 161 . . . . . . . . 9 ((*Q𝑣) ∈ Q → ((𝑞 <Q (*Q𝑣) ∧ (*Q‘(*Q𝑣)) ∈ (2nd𝐴)) → 𝑞 ∈ (1st𝐵)))
6451, 63syl 14 . . . . . . . 8 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → ((𝑞 <Q (*Q𝑣) ∧ (*Q‘(*Q𝑣)) ∈ (2nd𝐴)) → 𝑞 ∈ (1st𝐵)))
6554, 56, 64mp2and 427 . . . . . . 7 ((((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) ∧ (𝑣 ∈ (2nd𝐴) ∧ 𝑣 <Q (*Q𝑞))) → 𝑞 ∈ (1st𝐵))
6639, 65rexlimddv 2513 . . . . . 6 (((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) → 𝑞 ∈ (1st𝐵))
6766orcd 693 . . . . 5 (((𝐴P𝑞 <Q 𝑟) ∧ (*Q𝑞) ∈ (2nd𝐴)) → (𝑞 ∈ (1st𝐵) ∨ 𝑟 ∈ (2nd𝐵)))
68 ltrnqi 7130 . . . . . 6 (𝑞 <Q 𝑟 → (*Q𝑟) <Q (*Q𝑞))
69 prloc 7200 . . . . . 6 ((⟨(1st𝐴), (2nd𝐴)⟩ ∈ P ∧ (*Q𝑟) <Q (*Q𝑞)) → ((*Q𝑟) ∈ (1st𝐴) ∨ (*Q𝑞) ∈ (2nd𝐴)))
701, 68, 69syl2an 285 . . . . 5 ((𝐴P𝑞 <Q 𝑟) → ((*Q𝑟) ∈ (1st𝐴) ∨ (*Q𝑞) ∈ (2nd𝐴)))
7136, 67, 70mpjaodan 753 . . . 4 ((𝐴P𝑞 <Q 𝑟) → (𝑞 ∈ (1st𝐵) ∨ 𝑟 ∈ (2nd𝐵)))
7271ex 114 . . 3 (𝐴P → (𝑞 <Q 𝑟 → (𝑞 ∈ (1st𝐵) ∨ 𝑟 ∈ (2nd𝐵))))
7372ralrimivw 2465 . 2 (𝐴P → ∀𝑟Q (𝑞 <Q 𝑟 → (𝑞 ∈ (1st𝐵) ∨ 𝑟 ∈ (2nd𝐵))))
7473ralrimivw 2465 1 (𝐴P → ∀𝑞Q𝑟Q (𝑞 <Q 𝑟 → (𝑞 ∈ (1st𝐵) ∨ 𝑟 ∈ (2nd𝐵))))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 103  wb 104  wo 670   = wceq 1299  wex 1436  wcel 1448  {cab 2086  wral 2375  wrex 2376  cop 3477   class class class wbr 3875  cfv 5059  1st c1st 5967  2nd c2nd 5968  Qcnq 6989  *Qcrq 6993   <Q cltq 6994  Pcnp 7000
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 584  ax-in2 585  ax-io 671  ax-5 1391  ax-7 1392  ax-gen 1393  ax-ie1 1437  ax-ie2 1438  ax-8 1450  ax-10 1451  ax-11 1452  ax-i12 1453  ax-bndl 1454  ax-4 1455  ax-13 1459  ax-14 1460  ax-17 1474  ax-i9 1478  ax-ial 1482  ax-i5r 1483  ax-ext 2082  ax-coll 3983  ax-sep 3986  ax-nul 3994  ax-pow 4038  ax-pr 4069  ax-un 4293  ax-setind 4390  ax-iinf 4440
This theorem depends on definitions:  df-bi 116  df-dc 787  df-3or 931  df-3an 932  df-tru 1302  df-fal 1305  df-nf 1405  df-sb 1704  df-eu 1963  df-mo 1964  df-clab 2087  df-cleq 2093  df-clel 2096  df-nfc 2229  df-ne 2268  df-ral 2380  df-rex 2381  df-reu 2382  df-rab 2384  df-v 2643  df-sbc 2863  df-csb 2956  df-dif 3023  df-un 3025  df-in 3027  df-ss 3034  df-nul 3311  df-pw 3459  df-sn 3480  df-pr 3481  df-op 3483  df-uni 3684  df-int 3719  df-iun 3762  df-br 3876  df-opab 3930  df-mpt 3931  df-tr 3967  df-eprel 4149  df-id 4153  df-iord 4226  df-on 4228  df-suc 4231  df-iom 4443  df-xp 4483  df-rel 4484  df-cnv 4485  df-co 4486  df-dm 4487  df-rn 4488  df-res 4489  df-ima 4490  df-iota 5024  df-fun 5061  df-fn 5062  df-f 5063  df-f1 5064  df-fo 5065  df-f1o 5066  df-fv 5067  df-ov 5709  df-oprab 5710  df-mpo 5711  df-1st 5969  df-2nd 5970  df-recs 6132  df-irdg 6197  df-1o 6243  df-oadd 6247  df-omul 6248  df-er 6359  df-ec 6361  df-qs 6365  df-ni 7013  df-mi 7015  df-lti 7016  df-mpq 7054  df-enq 7056  df-nqqs 7057  df-mqqs 7059  df-1nqqs 7060  df-rq 7061  df-ltnqqs 7062  df-inp 7175
This theorem is referenced by:  recexprlempr  7341
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