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Theorem precsexlem8 28477
Description: Lemma for surreal reciprocal. Show that the left and right functions give sets of surreals. (Contributed by Scott Fenton, 13-Mar-2025.)
Hypotheses
Ref Expression
precsexlem.1 𝐹 = rec((𝑝 ∈ V ↦ (1st𝑝) / 𝑙(2nd𝑝) / 𝑟⟨(𝑙 ∪ ({𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝐿𝑙 𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅)} ∪ {𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝑅𝑟 𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿)})), (𝑟 ∪ ({𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝐿𝑙 𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿)} ∪ {𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝑅𝑟 𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅)}))⟩), ⟨{ 0s }, ∅⟩)
precsexlem.2 𝐿 = (1st𝐹)
precsexlem.3 𝑅 = (2nd𝐹)
precsexlem.4 (𝜑𝐴 No )
precsexlem.5 (𝜑 → 0s <s 𝐴)
precsexlem.6 (𝜑 → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
Assertion
Ref Expression
precsexlem8 ((𝜑𝐼 ∈ ω) → ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No ))
Distinct variable groups:   𝐴,𝑎,𝑙,𝑝,𝑟,𝑥,𝑥𝑂,𝑥𝐿,𝑥𝑅,𝑦,𝑦𝐿,𝑦𝑅   𝐹,𝑙,𝑝   𝐿,𝑎,𝑙,𝑥𝐿,𝑥𝑅,𝑦𝐿,𝑦𝑅   𝑅,𝑎,𝑙,𝑟,𝑥𝐿,𝑥𝑅,𝑦𝐿,𝑦𝑅   𝜑,𝑎,𝑥𝐿,𝑥𝑅,𝑦𝐿,𝑦𝑅
Allowed substitution hints:   𝜑(𝑥, 𝑦, 𝑟, 𝑝, 𝑙, 𝑥𝑂)   𝑅(𝑥, 𝑦, 𝑝, 𝑥𝑂)   𝐹(𝑥, 𝑦, 𝑟, 𝑎, 𝑥𝑂, 𝑥𝐿, 𝑥𝑅, 𝑦𝐿, 𝑦𝑅)   𝐼(𝑥, 𝑦, 𝑟, 𝑝, 𝑎, 𝑙, 𝑥𝑂, 𝑥𝐿, 𝑥𝑅, 𝑦𝐿, 𝑦𝑅)   𝐿(𝑥, 𝑦, 𝑟, 𝑝, 𝑥𝑂)

Proof of Theorem precsexlem8
Dummy variables 𝑖 𝑗 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fveq2 6882 . . . . . 6 (𝑖 = ∅ → (𝐿𝑖) = (𝐿‘∅))
21sseq1d 3965 . . . . 5 (𝑖 = ∅ → ((𝐿𝑖) ⊆ No ↔ (𝐿‘∅) ⊆ No ))
3 fveq2 6882 . . . . . 6 (𝑖 = ∅ → (𝑅𝑖) = (𝑅‘∅))
43sseq1d 3965 . . . . 5 (𝑖 = ∅ → ((𝑅𝑖) ⊆ No ↔ (𝑅‘∅) ⊆ No ))
52, 4anbi12d 644 . . . 4 (𝑖 = ∅ → (((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No ) ↔ ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No )))
65imbi2d 343 . . 3 (𝑖 = ∅ → ((𝜑 → ((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No )) ↔ (𝜑 → ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No ))))
7 fveq2 6882 . . . . . 6 (𝑖 = 𝑗 → (𝐿𝑖) = (𝐿𝑗))
87sseq1d 3965 . . . . 5 (𝑖 = 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝑗) ⊆ No ))
9 fveq2 6882 . . . . . 6 (𝑖 = 𝑗 → (𝑅𝑖) = (𝑅𝑗))
109sseq1d 3965 . . . . 5 (𝑖 = 𝑗 → ((𝑅𝑖) ⊆ No ↔ (𝑅𝑗) ⊆ No ))
118, 10anbi12d 644 . . . 4 (𝑖 = 𝑗 → (((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No ) ↔ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )))
1211imbi2d 343 . . 3 (𝑖 = 𝑗 → ((𝜑 → ((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No )) ↔ (𝜑 → ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No ))))
13 fveq2 6882 . . . . . 6 (𝑖 = suc 𝑗 → (𝐿𝑖) = (𝐿‘suc 𝑗))
1413sseq1d 3965 . . . . 5 (𝑖 = suc 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿‘suc 𝑗) ⊆ No ))
15 fveq2 6882 . . . . . 6 (𝑖 = suc 𝑗 → (𝑅𝑖) = (𝑅‘suc 𝑗))
1615sseq1d 3965 . . . . 5 (𝑖 = suc 𝑗 → ((𝑅𝑖) ⊆ No ↔ (𝑅‘suc 𝑗) ⊆ No ))
1714, 16anbi12d 644 . . . 4 (𝑖 = suc 𝑗 → (((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No ) ↔ ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No )))
1817imbi2d 343 . . 3 (𝑖 = suc 𝑗 → ((𝜑 → ((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No )) ↔ (𝜑 → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
19 fveq2 6882 . . . . . 6 (𝑖 = 𝐼 → (𝐿𝑖) = (𝐿𝐼))
2019sseq1d 3965 . . . . 5 (𝑖 = 𝐼 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝐼) ⊆ No ))
21 fveq2 6882 . . . . . 6 (𝑖 = 𝐼 → (𝑅𝑖) = (𝑅𝐼))
2221sseq1d 3965 . . . . 5 (𝑖 = 𝐼 → ((𝑅𝑖) ⊆ No ↔ (𝑅𝐼) ⊆ No ))
2320, 22anbi12d 644 . . . 4 (𝑖 = 𝐼 → (((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No ) ↔ ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No )))
2423imbi2d 343 . . 3 (𝑖 = 𝐼 → ((𝜑 → ((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No )) ↔ (𝜑 → ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No ))))
25 precsexlem.1 . . . . . . 7 𝐹 = rec((𝑝 ∈ V ↦ (1st𝑝) / 𝑙(2nd𝑝) / 𝑟⟨(𝑙 ∪ ({𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝐿𝑙 𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅)} ∪ {𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝑅𝑟 𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿)})), (𝑟 ∪ ({𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝐿𝑙 𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿)} ∪ {𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝑅𝑟 𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅)}))⟩), ⟨{ 0s }, ∅⟩)
26 precsexlem.2 . . . . . . 7 𝐿 = (1st𝐹)
27 precsexlem.3 . . . . . . 7 𝑅 = (2nd𝐹)
2825, 26, 27precsexlem1 28470 . . . . . 6 (𝐿‘∅) = { 0s }
29 0no 28072 . . . . . . 7 0s No
30 snssi 4749 . . . . . . 7 ( 0s No → { 0s } ⊆ No )
3129, 30ax-mp 5 . . . . . 6 { 0s } ⊆ No
3228, 31eqsstri 3980 . . . . 5 (𝐿‘∅) ⊆ No
3325, 26, 27precsexlem2 28471 . . . . . 6 (𝑅‘∅) = ∅
34 0ss 4353 . . . . . 6 ∅ ⊆ No
3533, 34eqsstri 3980 . . . . 5 (𝑅‘∅) ⊆ No
3632, 35pm3.2i 476 . . . 4 ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No )
3736a1i 11 . . 3 (𝜑 → ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No ))
3825, 26, 27precsexlem4 28473 . . . . . . . . 9 (𝑗 ∈ ω → (𝐿‘suc 𝑗) = ((𝐿𝑗) ∪ ({𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅)} ∪ {𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿)})))
39383ad2ant2 1152 . . . . . . . 8 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿‘suc 𝑗) = ((𝐿𝑗) ∪ ({𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅)} ∪ {𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿)})))
40 simp3l 1220 . . . . . . . . 9 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿𝑗) ⊆ No )
41 1no 28073 . . . . . . . . . . . . . . . 16 1s No
4241a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 1s No )
43 simprl 783 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ∈ ( R ‘𝐴))
4443rightnod 28145 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 No )
45 precsexlem.4 . . . . . . . . . . . . . . . . . . 19 (𝜑𝐴 No )
46453ad2ant1 1151 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → 𝐴 No )
4746adantr 486 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 No )
4844, 47subscld 28326 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑥𝑅 -s 𝐴) ∈ No )
49 simpl3l 1247 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝐿𝑗) ⊆ No )
50 simprr 785 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 ∈ (𝐿𝑗))
5149, 50sseldd 3935 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
5248, 51mulscld 28398 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿) ∈ No )
5342, 52addscld 28243 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) ∈ No )
5429a1i 11 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s No )
55 precsexlem.5 . . . . . . . . . . . . . . . . . 18 (𝜑 → 0s <s 𝐴)
56553ad2ant1 1151 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → 0s <s 𝐴)
5756adantr 486 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝐴)
58 rightgt 28117 . . . . . . . . . . . . . . . . 17 (𝑥𝑅 ∈ ( R ‘𝐴) → 𝐴 <s 𝑥𝑅)
5943, 58syl 18 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 <s 𝑥𝑅)
6054, 47, 44, 57, 59ltstrd 27997 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝑥𝑅)
6160gt0ne0sd 28082 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ≠ 0s )
62 breq2 5111 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝑅 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝑅))
63 oveq1 7423 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝑅 → (𝑥𝑂 ·s 𝑦) = (𝑥𝑅 ·s 𝑦))
6463eqeq1d 2764 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝑅 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝑅 ·s 𝑦) = 1s ))
6564rexbidv 3188 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝑅 → (∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ↔ ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
6662, 65imbi12d 347 . . . . . . . . . . . . . . . 16 (𝑥𝑂 = 𝑥𝑅 → (( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ) ↔ ( 0s <s 𝑥𝑅 → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s )))
67 precsexlem.6 . . . . . . . . . . . . . . . . . 18 (𝜑 → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
68673ad2ant1 1151 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
6968adantr 486 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
70 elun2 4132 . . . . . . . . . . . . . . . . 17 (𝑥𝑅 ∈ ( R ‘𝐴) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
7143, 70syl 18 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
7266, 69, 71rspcdva 3580 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ( 0s <s 𝑥𝑅 → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
7360, 72mpd 16 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s )
7453, 44, 61, 73divsclwd 28459 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) ∈ No )
75 eleq1 2850 . . . . . . . . . . . . 13 (𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) → (𝑎 No ↔ (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) ∈ No ))
7674, 75syl5ibrcom 250 . . . . . . . . . . . 12 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) → 𝑎 No ))
7776rexlimdvva 3221 . . . . . . . . . . 11 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) → 𝑎 No ))
7877abssdv 4018 . . . . . . . . . 10 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → {𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅)} ⊆ No )
7941a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 1s No )
80 ssrab2 4031 . . . . . . . . . . . . . . . . . . 19 {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ⊆ ( L ‘𝐴)
81 simprl 783 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥})
8280, 81sselid 3932 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
8382leftnod 28143 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 No )
8446adantr 486 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 No )
8583, 84subscld 28326 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑥𝐿 -s 𝐴) ∈ No )
86 simpl3r 1248 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑅𝑗) ⊆ No )
87 simprr 785 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 ∈ (𝑅𝑗))
8886, 87sseldd 3935 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
8985, 88mulscld 28398 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅) ∈ No )
9079, 89addscld 28243 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) ∈ No )
91 breq2 5111 . . . . . . . . . . . . . . . . . 18 (𝑥 = 𝑥𝐿 → ( 0s <s 𝑥 ↔ 0s <s 𝑥𝐿))
9291elrab 3648 . . . . . . . . . . . . . . . . 17 (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ↔ (𝑥𝐿 ∈ ( L ‘𝐴) ∧ 0s <s 𝑥𝐿))
9392simprbi 503 . . . . . . . . . . . . . . . 16 (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} → 0s <s 𝑥𝐿)
9481, 93syl 18 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝑥𝐿)
9594gt0ne0sd 28082 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ≠ 0s )
96 breq2 5111 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝐿 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝐿))
97 oveq1 7423 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝐿 → (𝑥𝑂 ·s 𝑦) = (𝑥𝐿 ·s 𝑦))
9897eqeq1d 2764 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝐿 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝐿 ·s 𝑦) = 1s ))
9998rexbidv 3188 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝐿 → (∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ↔ ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s ))
10096, 99imbi12d 347 . . . . . . . . . . . . . . . 16 (𝑥𝑂 = 𝑥𝐿 → (( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ) ↔ ( 0s <s 𝑥𝐿 → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s )))
10168adantr 486 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
102 elun1 4131 . . . . . . . . . . . . . . . . 17 (𝑥𝐿 ∈ ( L ‘𝐴) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
10382, 102syl 18 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
104100, 101, 103rspcdva 3580 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ( 0s <s 𝑥𝐿 → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s ))
10594, 104mpd 16 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s )
10690, 83, 95, 105divsclwd 28459 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿) ∈ No )
107 eleq1 2850 . . . . . . . . . . . . 13 (𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿) → (𝑎 No ↔ (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿) ∈ No ))
108106, 107syl5ibrcom 250 . . . . . . . . . . . 12 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿) → 𝑎 No ))
109108rexlimdvva 3221 . . . . . . . . . . 11 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿) → 𝑎 No ))
110109abssdv 4018 . . . . . . . . . 10 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → {𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿)} ⊆ No )
11178, 110unssd 4141 . . . . . . . . 9 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ({𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅)} ∪ {𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿)}) ⊆ No )
11240, 111unssd 4141 . . . . . . . 8 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ((𝐿𝑗) ∪ ({𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅)} ∪ {𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝐿)})) ⊆ No )
11339, 112eqsstrd 3968 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿‘suc 𝑗) ⊆ No )
11425, 26, 27precsexlem5 28474 . . . . . . . . 9 (𝑗 ∈ ω → (𝑅‘suc 𝑗) = ((𝑅𝑗) ∪ ({𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿)} ∪ {𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅)})))
1151143ad2ant2 1152 . . . . . . . 8 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝑅‘suc 𝑗) = ((𝑅𝑗) ∪ ({𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿)} ∪ {𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅)})))
116 simp3r 1221 . . . . . . . . 9 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝑅𝑗) ⊆ No )
11741a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 1s No )
118 simprl 783 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥})
11980, 118sselid 3932 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
120119leftnod 28143 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 No )
12146adantr 486 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 No )
122120, 121subscld 28326 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑥𝐿 -s 𝐴) ∈ No )
123 simpl3l 1247 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝐿𝑗) ⊆ No )
124 simprr 785 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 ∈ (𝐿𝑗))
125123, 124sseldd 3935 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
126122, 125mulscld 28398 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿) ∈ No )
127117, 126addscld 28243 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) ∈ No )
128118, 93syl 18 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝑥𝐿)
129128gt0ne0sd 28082 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ≠ 0s )
13068adantr 486 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
131119, 102syl 18 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
132100, 130, 131rspcdva 3580 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ( 0s <s 𝑥𝐿 → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s ))
133128, 132mpd 16 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s )
134127, 120, 129, 133divsclwd 28459 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿) ∈ No )
135 eleq1 2850 . . . . . . . . . . . . 13 (𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿) → (𝑎 No ↔ (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿) ∈ No ))
136134, 135syl5ibrcom 250 . . . . . . . . . . . 12 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿) → 𝑎 No ))
137136rexlimdvva 3221 . . . . . . . . . . 11 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿) → 𝑎 No ))
138137abssdv 4018 . . . . . . . . . 10 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → {𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿)} ⊆ No )
13941a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 1s No )
140 simprl 783 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ∈ ( R ‘𝐴))
141140rightnod 28145 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 No )
14246adantr 486 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 No )
143141, 142subscld 28326 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑥𝑅 -s 𝐴) ∈ No )
144 simpl3r 1248 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑅𝑗) ⊆ No )
145 simprr 785 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 ∈ (𝑅𝑗))
146144, 145sseldd 3935 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
147143, 146mulscld 28398 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅) ∈ No )
148139, 147addscld 28243 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) ∈ No )
14929a1i 11 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s No )
15056adantr 486 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝐴)
151140, 58syl 18 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 <s 𝑥𝑅)
152149, 142, 141, 150, 151ltstrd 27997 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝑥𝑅)
153152gt0ne0sd 28082 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ≠ 0s )
15468adantr 486 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
155140, 70syl 18 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
15666, 154, 155rspcdva 3580 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ( 0s <s 𝑥𝑅 → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
157152, 156mpd 16 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s )
158148, 141, 153, 157divsclwd 28459 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) ∈ No )
159 eleq1 2850 . . . . . . . . . . . . 13 (𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) → (𝑎 No ↔ (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) ∈ No ))
160158, 159syl5ibrcom 250 . . . . . . . . . . . 12 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) → 𝑎 No ))
161160rexlimdvva 3221 . . . . . . . . . . 11 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) → 𝑎 No ))
162161abssdv 4018 . . . . . . . . . 10 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → {𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅)} ⊆ No )
163138, 162unssd 4141 . . . . . . . . 9 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ({𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿)} ∪ {𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅)}) ⊆ No )
164116, 163unssd 4141 . . . . . . . 8 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ((𝑅𝑗) ∪ ({𝑎 ∣ ∃𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥}∃𝑦𝐿 ∈ (𝐿𝑗)𝑎 = (( 1s +s ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝐿)} ∪ {𝑎 ∣ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑦𝑅 ∈ (𝑅𝑗)𝑎 = (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅)})) ⊆ No )
165115, 164eqsstrd 3968 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝑅‘suc 𝑗) ⊆ No )
166113, 165jca 521 . . . . . 6 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))
1671663exp 1137 . . . . 5 (𝜑 → (𝑗 ∈ ω → (((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No ) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
168167com12 33 . . . 4 (𝑗 ∈ ω → (𝜑 → (((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No ) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
169168a2d 30 . . 3 (𝑗 ∈ ω → ((𝜑 → ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝜑 → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
1706, 12, 18, 24, 37, 169finds 7896 . 2 (𝐼 ∈ ω → (𝜑 → ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No )))
171170impcom 413 1 ((𝜑𝐼 ∈ ω) → ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No ))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wa 401  w3a 1103   = wceq 1570  wcel 2145  {cab 2740  wral 3078  wrex 3088  {crab 3414  Vcvv 3453  csb 3850  cun 3900  wss 3902  c0 4282  {csn 4587  cop 4593   class class class wbr 5107  cmpt 5190  ccom 5663  suc csuc 6363  cfv 6537  (class class class)co 7416  ωcom 7865  1st c1st 7987  2nd c2nd 7988  reccrdg 8401   No csur 27874   <s clts 27875   0s c0s 28068   1s c1s 28069   L cleft 28088   R cright 28089   +s cadds 28222   -s csubs 28283   ·s cmuls 28369   /su cdivs 28450
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2215  ax-ext 2734  ax-rep 5236  ax-sep 5255  ax-nul 5267  ax-pow 5334  ax-pr 5402  ax-un 7739
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3079  df-rex 3089  df-rmo 3367  df-reu 3368  df-rab 3415  df-v 3455  df-sbc 3743  df-csb 3851  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-pss 3922  df-nul 4283  df-if 4486  df-pw 4562  df-sn 4588  df-pr 4590  df-tp 4592  df-op 4594  df-ot 4596  df-uni 4871  df-int 4911  df-iun 4956  df-br 5108  df-opab 5172  df-mpt 5191  df-tr 5217  df-id 5554  df-eprel 5559  df-po 5567  df-so 5568  df-fr 5612  df-se 5613  df-we 5614  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-pred 6303  df-ord 6364  df-on 6365  df-lim 6366  df-suc 6367  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-riota 7373  df-ov 7419  df-oprab 7420  df-mpo 7421  df-om 7866  df-1st 7989  df-2nd 7990  df-frecs 8283  df-wrecs 8314  df-recs 8363  df-rdg 8402  df-1o 8458  df-2o 8459  df-nadd 8657  df-no 27877  df-lts 27878  df-bday 27879  df-les 27979  df-slts 28021  df-cuts 28023  df-0s 28070  df-1s 28071  df-made 28090  df-old 28091  df-left 28093  df-right 28094  df-norec 28201  df-norec2 28212  df-adds 28223  df-negs 28284  df-subs 28285  df-muls 28370  df-divs 28451
This theorem is used by:  precsexlem9  28478  precsexlem10  28479
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