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Theorem prarloc 7444
Description: A Dedekind cut is arithmetically located. Part of Proposition 11.15 of [BauerTaylor], p. 52, slightly modified. It states that given a tolerance 𝑃, there are elements of the lower and upper cut which are within that tolerance of each other.

Usually, proofs will be shorter if they use prarloc2 7445 instead. (Contributed by Jim Kingdon, 22-Oct-2019.)

Assertion
Ref Expression
prarloc ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑎𝐿𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃))
Distinct variable groups:   𝐿,𝑎,𝑏   𝑃,𝑎,𝑏   𝑈,𝑎,𝑏

Proof of Theorem prarloc
Dummy variables 𝑚 𝑛 𝑞 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 prml 7418 . . . . . . 7 (⟨𝐿, 𝑈⟩ ∈ P → ∃𝑥Q 𝑥𝐿)
2 df-rex 2450 . . . . . . 7 (∃𝑥Q 𝑥𝐿 ↔ ∃𝑥(𝑥Q𝑥𝐿))
31, 2sylib 121 . . . . . 6 (⟨𝐿, 𝑈⟩ ∈ P → ∃𝑥(𝑥Q𝑥𝐿))
43adantr 274 . . . . 5 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑥(𝑥Q𝑥𝐿))
5 prmu 7419 . . . . . . 7 (⟨𝐿, 𝑈⟩ ∈ P → ∃𝑦Q 𝑦𝑈)
6 df-rex 2450 . . . . . . 7 (∃𝑦Q 𝑦𝑈 ↔ ∃𝑦(𝑦Q𝑦𝑈))
75, 6sylib 121 . . . . . 6 (⟨𝐿, 𝑈⟩ ∈ P → ∃𝑦(𝑦Q𝑦𝑈))
87adantr 274 . . . . 5 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑦(𝑦Q𝑦𝑈))
9 subhalfnqq 7355 . . . . . . . . 9 (𝑃Q → ∃𝑞Q (𝑞 +Q 𝑞) <Q 𝑃)
109adantl 275 . . . . . . . 8 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑞Q (𝑞 +Q 𝑞) <Q 𝑃)
11 df-rex 2450 . . . . . . . 8 (∃𝑞Q (𝑞 +Q 𝑞) <Q 𝑃 ↔ ∃𝑞(𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))
1210, 11sylib 121 . . . . . . 7 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑞(𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))
1312ancli 321 . . . . . 6 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ ∃𝑞(𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃)))
14 19.42v 1894 . . . . . 6 (∃𝑞((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃)) ↔ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ ∃𝑞(𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃)))
1513, 14sylibr 133 . . . . 5 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑞((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃)))
16 eeeanv 1921 . . . . 5 (∃𝑥𝑦𝑞((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ↔ (∃𝑥(𝑥Q𝑥𝐿) ∧ ∃𝑦(𝑦Q𝑦𝑈) ∧ ∃𝑞((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))))
174, 8, 15, 16syl3anbrc 1171 . . . 4 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑥𝑦𝑞((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))))
18 prarloclemarch2 7360 . . . . . . . . . . . . . 14 ((𝑦Q𝑥Q𝑞Q) → ∃𝑛N (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))
19 df-rex 2450 . . . . . . . . . . . . . 14 (∃𝑛N (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))) ↔ ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)))))
2018, 19sylib 121 . . . . . . . . . . . . 13 ((𝑦Q𝑥Q𝑞Q) → ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)))))
21203com12 1197 . . . . . . . . . . . 12 ((𝑥Q𝑦Q𝑞Q) → ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)))))
22213adant1r 1221 . . . . . . . . . . 11 (((𝑥Q𝑥𝐿) ∧ 𝑦Q𝑞Q) → ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)))))
23223adant2r 1223 . . . . . . . . . 10 (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ 𝑞Q) → ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)))))
24233adant3r 1225 . . . . . . . . 9 (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃)) → ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)))))
25243adant3l 1224 . . . . . . . 8 (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) → ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)))))
2625ancli 321 . . . . . . 7 (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) → (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))))
27 19.42v 1894 . . . . . . 7 (∃𝑛(((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) ↔ (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ ∃𝑛(𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))))
2826, 27sylibr 133 . . . . . 6 (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) → ∃𝑛(((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))))
29282eximi 1589 . . . . 5 (∃𝑦𝑞((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) → ∃𝑦𝑞𝑛(((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))))
3029eximi 1588 . . . 4 (∃𝑥𝑦𝑞((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) → ∃𝑥𝑦𝑞𝑛(((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))))
31 simpl1l 1038 . . . . . . . . . 10 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → 𝑥Q)
32 simp3rl 1060 . . . . . . . . . . 11 (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) → 𝑞Q)
3332adantr 274 . . . . . . . . . 10 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → 𝑞Q)
34 simp3rr 1061 . . . . . . . . . . 11 (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) → (𝑞 +Q 𝑞) <Q 𝑃)
3534adantr 274 . . . . . . . . . 10 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → (𝑞 +Q 𝑞) <Q 𝑃)
3631, 33, 353jca 1167 . . . . . . . . 9 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → (𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))
37 simp3ll 1058 . . . . . . . . . . . 12 (((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) → ⟨𝐿, 𝑈⟩ ∈ P)
3837adantr 274 . . . . . . . . . . 11 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → ⟨𝐿, 𝑈⟩ ∈ P)
39 simpl1r 1039 . . . . . . . . . . 11 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → 𝑥𝐿)
40 simprl 521 . . . . . . . . . . 11 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → 𝑛N)
41 simprrl 529 . . . . . . . . . . 11 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → 1o <N 𝑛)
42 simprrr 530 . . . . . . . . . . . 12 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → 𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)))
43 simpl2r 1041 . . . . . . . . . . . . 13 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → 𝑦𝑈)
44 prcunqu 7426 . . . . . . . . . . . . 13 ((⟨𝐿, 𝑈⟩ ∈ P𝑦𝑈) → (𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)) → (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))
4538, 43, 44syl2anc 409 . . . . . . . . . . . 12 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → (𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)) → (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))
4642, 45mpd 13 . . . . . . . . . . 11 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)
47 prarloclem 7442 . . . . . . . . . . 11 (((⟨𝐿, 𝑈⟩ ∈ P𝑥𝐿) ∧ (𝑛N𝑞Q ∧ 1o <N 𝑛) ∧ (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈) → ∃𝑚 ∈ ω ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))
4838, 39, 40, 33, 41, 46, 47syl231anc 1248 . . . . . . . . . 10 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → ∃𝑚 ∈ ω ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))
49 df-rex 2450 . . . . . . . . . 10 (∃𝑚 ∈ ω ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈) ↔ ∃𝑚(𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))
5048, 49sylib 121 . . . . . . . . 9 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → ∃𝑚(𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))
5136, 50jca 304 . . . . . . . 8 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ ∃𝑚(𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))
52 19.42v 1894 . . . . . . . 8 (∃𝑚((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) ↔ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ ∃𝑚(𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))
5351, 52sylibr 133 . . . . . . 7 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → ∃𝑚((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))
54 simprrl 529 . . . . . . . . . . . 12 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) → (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿)
55 eleq1 2229 . . . . . . . . . . . . . . . . 17 (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) → (𝑎𝐿 ↔ (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿))
5655anbi1d 461 . . . . . . . . . . . . . . . 16 (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) → ((𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈) ↔ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))
5756anbi2d 460 . . . . . . . . . . . . . . 15 (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) → ((𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)) ↔ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))
5857anbi2d 460 . . . . . . . . . . . . . 14 (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) → (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) ↔ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))))
5958ceqsexgv 2855 . . . . . . . . . . . . 13 ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 → (∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))) ↔ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))))
6059biimprcd 159 . . . . . . . . . . . 12 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) → ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 → ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))))
6154, 60mpd 13 . . . . . . . . . . 11 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) → ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))))
62 simprrr 530 . . . . . . . . . . 11 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) → (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)
63 eleq1 2229 . . . . . . . . . . . . . . . . . 18 (𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) → (𝑏𝑈 ↔ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))
6463anbi2d 460 . . . . . . . . . . . . . . . . 17 (𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) → ((𝑎𝐿𝑏𝑈) ↔ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))
6564anbi2d 460 . . . . . . . . . . . . . . . 16 (𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) → ((𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)) ↔ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))
6665anbi2d 460 . . . . . . . . . . . . . . 15 (𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) → (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))) ↔ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))))
6766anbi2d 460 . . . . . . . . . . . . . 14 (𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) → ((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) ↔ (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))))
6867exbidv 1813 . . . . . . . . . . . . 13 (𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) → (∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) ↔ ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))))
6968ceqsexgv 2855 . . . . . . . . . . . 12 ((𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈 → (∃𝑏(𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))) ↔ ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))))))
7069biimprcd 159 . . . . . . . . . . 11 (∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈)))) → ((𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈 → ∃𝑏(𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))))))
7161, 62, 70sylc 62 . . . . . . . . . 10 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) → ∃𝑏(𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))))
72 19.42v 1894 . . . . . . . . . . 11 (∃𝑎(𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))) ↔ (𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))))
7372exbii 1593 . . . . . . . . . 10 (∃𝑏𝑎(𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))) ↔ ∃𝑏(𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ ∃𝑎(𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))))
7471, 73sylibr 133 . . . . . . . . 9 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) → ∃𝑏𝑎(𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))))
75 simprrl 529 . . . . . . . . . . . . . 14 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))) → 𝑎𝐿)
7675adantl 275 . . . . . . . . . . . . 13 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → 𝑎𝐿)
77 simprrr 530 . . . . . . . . . . . . . . 15 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))) → 𝑏𝑈)
7877adantl 275 . . . . . . . . . . . . . 14 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → 𝑏𝑈)
79 simpl 108 . . . . . . . . . . . . . . 15 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))))
80 simprl2 1033 . . . . . . . . . . . . . . . 16 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → 𝑞Q)
81 simprl3 1034 . . . . . . . . . . . . . . . 16 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → (𝑞 +Q 𝑞) <Q 𝑃)
8280, 81jca 304 . . . . . . . . . . . . . . 15 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))
83 simprl1 1032 . . . . . . . . . . . . . . . 16 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → 𝑥Q)
84 simprrl 529 . . . . . . . . . . . . . . . 16 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → 𝑚 ∈ ω)
8583, 84jca 304 . . . . . . . . . . . . . . 15 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → (𝑥Q𝑚 ∈ ω))
86 prarloclemcalc 7443 . . . . . . . . . . . . . . 15 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑥Q𝑚 ∈ ω))) → 𝑏 <Q (𝑎 +Q 𝑃))
8779, 82, 85, 86syl12anc 1226 . . . . . . . . . . . . . 14 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → 𝑏 <Q (𝑎 +Q 𝑃))
8878, 87jca 304 . . . . . . . . . . . . 13 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃)))
8976, 88jca 304 . . . . . . . . . . . 12 (((𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ 𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → (𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
9089ancom1s 559 . . . . . . . . . . 11 (((𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ 𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞))) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈)))) → (𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
9190anasss 397 . . . . . . . . . 10 ((𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))) → (𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
92912eximi 1589 . . . . . . . . 9 (∃𝑏𝑎(𝑏 = (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∧ (𝑎 = (𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∧ ((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ (𝑎𝐿𝑏𝑈))))) → ∃𝑏𝑎(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
9374, 92syl 14 . . . . . . . 8 (((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) → ∃𝑏𝑎(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
9493exlimiv 1586 . . . . . . 7 (∃𝑚((𝑥Q𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃) ∧ (𝑚 ∈ ω ∧ ((𝑥 +Q0 ([⟨𝑚, 1o⟩] ~Q0 ·Q0 𝑞)) ∈ 𝐿 ∧ (𝑥 +Q ([⟨(𝑚 +o 2o), 1o⟩] ~Q ·Q 𝑞)) ∈ 𝑈))) → ∃𝑏𝑎(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
9553, 94syl 14 . . . . . 6 ((((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → ∃𝑏𝑎(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
9695exlimivv 1884 . . . . 5 (∃𝑞𝑛(((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → ∃𝑏𝑎(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
9796exlimivv 1884 . . . 4 (∃𝑥𝑦𝑞𝑛(((𝑥Q𝑥𝐿) ∧ (𝑦Q𝑦𝑈) ∧ ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) ∧ (𝑞Q ∧ (𝑞 +Q 𝑞) <Q 𝑃))) ∧ (𝑛N ∧ (1o <N 𝑛𝑦 <Q (𝑥 +Q ([⟨𝑛, 1o⟩] ~Q ·Q 𝑞))))) → ∃𝑏𝑎(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
9817, 30, 973syl 17 . . 3 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑏𝑎(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
99 excom 1652 . . 3 (∃𝑏𝑎(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))) ↔ ∃𝑎𝑏(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
10098, 99sylib 121 . 2 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑎𝑏(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
101 19.42v 1894 . . . . 5 (∃𝑏(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))) ↔ (𝑎𝐿 ∧ ∃𝑏(𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
102 df-rex 2450 . . . . . 6 (∃𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃) ↔ ∃𝑏(𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃)))
103102anbi2i 453 . . . . 5 ((𝑎𝐿 ∧ ∃𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃)) ↔ (𝑎𝐿 ∧ ∃𝑏(𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))))
104101, 103bitr4i 186 . . . 4 (∃𝑏(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))) ↔ (𝑎𝐿 ∧ ∃𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃)))
105104exbii 1593 . . 3 (∃𝑎𝑏(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))) ↔ ∃𝑎(𝑎𝐿 ∧ ∃𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃)))
106 df-rex 2450 . . 3 (∃𝑎𝐿𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃) ↔ ∃𝑎(𝑎𝐿 ∧ ∃𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃)))
107105, 106bitr4i 186 . 2 (∃𝑎𝑏(𝑎𝐿 ∧ (𝑏𝑈𝑏 <Q (𝑎 +Q 𝑃))) ↔ ∃𝑎𝐿𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃))
108100, 107sylib 121 1 ((⟨𝐿, 𝑈⟩ ∈ P𝑃Q) → ∃𝑎𝐿𝑏𝑈 𝑏 <Q (𝑎 +Q 𝑃))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 103  w3a 968   = wceq 1343  wex 1480  wcel 2136  wrex 2445  cop 3579   class class class wbr 3982  ωcom 4567  (class class class)co 5842  1oc1o 6377  2oc2o 6378   +o coa 6381  [cec 6499  Ncnpi 7213   <N clti 7216   ~Q ceq 7220  Qcnq 7221   +Q cplq 7223   ·Q cmq 7224   <Q cltq 7226   ~Q0 ceq0 7227   +Q0 cplq0 7230   ·Q0 cmq0 7231  Pcnp 7232
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 604  ax-in2 605  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-13 2138  ax-14 2139  ax-ext 2147  ax-coll 4097  ax-sep 4100  ax-nul 4108  ax-pow 4153  ax-pr 4187  ax-un 4411  ax-setind 4514  ax-iinf 4565
This theorem depends on definitions:  df-bi 116  df-dc 825  df-3or 969  df-3an 970  df-tru 1346  df-fal 1349  df-nf 1449  df-sb 1751  df-eu 2017  df-mo 2018  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-ne 2337  df-ral 2449  df-rex 2450  df-reu 2451  df-rab 2453  df-v 2728  df-sbc 2952  df-csb 3046  df-dif 3118  df-un 3120  df-in 3122  df-ss 3129  df-nul 3410  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-uni 3790  df-int 3825  df-iun 3868  df-br 3983  df-opab 4044  df-mpt 4045  df-tr 4081  df-eprel 4267  df-id 4271  df-po 4274  df-iso 4275  df-iord 4344  df-on 4346  df-suc 4349  df-iom 4568  df-xp 4610  df-rel 4611  df-cnv 4612  df-co 4613  df-dm 4614  df-rn 4615  df-res 4616  df-ima 4617  df-iota 5153  df-fun 5190  df-fn 5191  df-f 5192  df-f1 5193  df-fo 5194  df-f1o 5195  df-fv 5196  df-ov 5845  df-oprab 5846  df-mpo 5847  df-1st 6108  df-2nd 6109  df-recs 6273  df-irdg 6338  df-1o 6384  df-2o 6385  df-oadd 6388  df-omul 6389  df-er 6501  df-ec 6503  df-qs 6507  df-ni 7245  df-pli 7246  df-mi 7247  df-lti 7248  df-plpq 7285  df-mpq 7286  df-enq 7288  df-nqqs 7289  df-plqqs 7290  df-mqqs 7291  df-1nqqs 7292  df-rq 7293  df-ltnqqs 7294  df-enq0 7365  df-nq0 7366  df-0nq0 7367  df-plq0 7368  df-mq0 7369  df-inp 7407
This theorem is referenced by:  prarloc2  7445  addlocpr  7477  prmuloc  7507  ltaddpr  7538  ltexprlemloc  7548  ltexprlemrl  7551  ltexprlemru  7553
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