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Theorem precsexlem8 28227
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 6844 . . . . . 6 (𝑖 = ∅ → (𝐿𝑖) = (𝐿‘∅))
21sseq1d 3967 . . . . 5 (𝑖 = ∅ → ((𝐿𝑖) ⊆ No ↔ (𝐿‘∅) ⊆ No ))
3 fveq2 6844 . . . . . 6 (𝑖 = ∅ → (𝑅𝑖) = (𝑅‘∅))
43sseq1d 3967 . . . . 5 (𝑖 = ∅ → ((𝑅𝑖) ⊆ No ↔ (𝑅‘∅) ⊆ No ))
52, 4anbi12d 633 . . . 4 (𝑖 = ∅ → (((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No ) ↔ ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No )))
65imbi2d 340 . . 3 (𝑖 = ∅ → ((𝜑 → ((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No )) ↔ (𝜑 → ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No ))))
7 fveq2 6844 . . . . . 6 (𝑖 = 𝑗 → (𝐿𝑖) = (𝐿𝑗))
87sseq1d 3967 . . . . 5 (𝑖 = 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝑗) ⊆ No ))
9 fveq2 6844 . . . . . 6 (𝑖 = 𝑗 → (𝑅𝑖) = (𝑅𝑗))
109sseq1d 3967 . . . . 5 (𝑖 = 𝑗 → ((𝑅𝑖) ⊆ No ↔ (𝑅𝑗) ⊆ No ))
118, 10anbi12d 633 . . . 4 (𝑖 = 𝑗 → (((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No ) ↔ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )))
1211imbi2d 340 . . 3 (𝑖 = 𝑗 → ((𝜑 → ((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No )) ↔ (𝜑 → ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No ))))
13 fveq2 6844 . . . . . 6 (𝑖 = suc 𝑗 → (𝐿𝑖) = (𝐿‘suc 𝑗))
1413sseq1d 3967 . . . . 5 (𝑖 = suc 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿‘suc 𝑗) ⊆ No ))
15 fveq2 6844 . . . . . 6 (𝑖 = suc 𝑗 → (𝑅𝑖) = (𝑅‘suc 𝑗))
1615sseq1d 3967 . . . . 5 (𝑖 = suc 𝑗 → ((𝑅𝑖) ⊆ No ↔ (𝑅‘suc 𝑗) ⊆ No ))
1714, 16anbi12d 633 . . . 4 (𝑖 = suc 𝑗 → (((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No ) ↔ ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No )))
1817imbi2d 340 . . 3 (𝑖 = suc 𝑗 → ((𝜑 → ((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No )) ↔ (𝜑 → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
19 fveq2 6844 . . . . . 6 (𝑖 = 𝐼 → (𝐿𝑖) = (𝐿𝐼))
2019sseq1d 3967 . . . . 5 (𝑖 = 𝐼 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝐼) ⊆ No ))
21 fveq2 6844 . . . . . 6 (𝑖 = 𝐼 → (𝑅𝑖) = (𝑅𝐼))
2221sseq1d 3967 . . . . 5 (𝑖 = 𝐼 → ((𝑅𝑖) ⊆ No ↔ (𝑅𝐼) ⊆ No ))
2320, 22anbi12d 633 . . . 4 (𝑖 = 𝐼 → (((𝐿𝑖) ⊆ No ∧ (𝑅𝑖) ⊆ No ) ↔ ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No )))
2423imbi2d 340 . . 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 28220 . . . . . 6 (𝐿‘∅) = { 0s }
29 0no 27822 . . . . . . 7 0s No
30 snssi 4766 . . . . . . 7 ( 0s No → { 0s } ⊆ No )
3129, 30ax-mp 5 . . . . . 6 { 0s } ⊆ No
3228, 31eqsstri 3982 . . . . 5 (𝐿‘∅) ⊆ No
3325, 26, 27precsexlem2 28221 . . . . . 6 (𝑅‘∅) = ∅
34 0ss 4354 . . . . . 6 ∅ ⊆ No
3533, 34eqsstri 3982 . . . . 5 (𝑅‘∅) ⊆ No
3632, 35pm3.2i 470 . . . 4 ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No )
3736a1i 11 . . 3 (𝜑 → ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No ))
3825, 26, 27precsexlem4 28223 . . . . . . . . 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 1135 . . . . . . . 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 1203 . . . . . . . . 9 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿𝑗) ⊆ No )
41 1no 27823 . . . . . . . . . . . . . . . 16 1s No
4241a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 1s No )
43 simprl 771 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ∈ ( R ‘𝐴))
4443rightnod 27895 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 No )
45 precsexlem.4 . . . . . . . . . . . . . . . . . . 19 (𝜑𝐴 No )
46453ad2ant1 1134 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → 𝐴 No )
4746adantr 480 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 No )
4844, 47subscld 28076 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑥𝑅 -s 𝐴) ∈ No )
49 simpl3l 1230 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝐿𝑗) ⊆ No )
50 simprr 773 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 ∈ (𝐿𝑗))
5149, 50sseldd 3936 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
5248, 51mulscld 28148 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿) ∈ No )
5342, 52addscld 27993 . . . . . . . . . . . . . 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 1134 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → 0s <s 𝐴)
5756adantr 480 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝐴)
58 rightgt 27867 . . . . . . . . . . . . . . . . 17 (𝑥𝑅 ∈ ( R ‘𝐴) → 𝐴 <s 𝑥𝑅)
5943, 58syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 <s 𝑥𝑅)
6054, 47, 44, 57, 59ltstrd 27748 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝑥𝑅)
6160gt0ne0sd 27832 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ≠ 0s )
62 breq2 5104 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝑅 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝑅))
63 oveq1 7377 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝑅 → (𝑥𝑂 ·s 𝑦) = (𝑥𝑅 ·s 𝑦))
6463eqeq1d 2739 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝑅 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝑅 ·s 𝑦) = 1s ))
6564rexbidv 3162 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝑅 → (∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ↔ ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
6662, 65imbi12d 344 . . . . . . . . . . . . . . . 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 1134 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
6968adantr 480 . . . . . . . . . . . . . . . 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 4137 . . . . . . . . . . . . . . . . 17 (𝑥𝑅 ∈ ( R ‘𝐴) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
7143, 70syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
7266, 69, 71rspcdva 3579 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ( 0s <s 𝑥𝑅 → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
7360, 72mpd 15 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s )
7453, 44, 61, 73divsclwd 28209 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) ∈ No )
75 eleq1 2825 . . . . . . . . . . . . 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 247 . . . . . . . . . . . 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 3195 . . . . . . . . . . 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 4021 . . . . . . . . . 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 4034 . . . . . . . . . . . . . . . . . . 19 {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ⊆ ( L ‘𝐴)
81 simprl 771 . . . . . . . . . . . . . . . . . . 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 3933 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
8382leftnod 27893 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 No )
8446adantr 480 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 No )
8583, 84subscld 28076 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑥𝐿 -s 𝐴) ∈ No )
86 simpl3r 1231 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑅𝑗) ⊆ No )
87 simprr 773 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 ∈ (𝑅𝑗))
8886, 87sseldd 3936 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
8985, 88mulscld 28148 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅) ∈ No )
9079, 89addscld 27993 . . . . . . . . . . . . . 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 5104 . . . . . . . . . . . . . . . . . 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 497 . . . . . . . . . . . . . . . 16 (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} → 0s <s 𝑥𝐿)
9481, 93syl 17 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝑥𝐿)
9594gt0ne0sd 27832 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ≠ 0s )
96 breq2 5104 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝐿 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝐿))
97 oveq1 7377 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝐿 → (𝑥𝑂 ·s 𝑦) = (𝑥𝐿 ·s 𝑦))
9897eqeq1d 2739 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝐿 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝐿 ·s 𝑦) = 1s ))
9998rexbidv 3162 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝐿 → (∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ↔ ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s ))
10096, 99imbi12d 344 . . . . . . . . . . . . . . . 16 (𝑥𝑂 = 𝑥𝐿 → (( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ) ↔ ( 0s <s 𝑥𝐿 → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s )))
10168adantr 480 . . . . . . . . . . . . . . . 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 4136 . . . . . . . . . . . . . . . . 17 (𝑥𝐿 ∈ ( L ‘𝐴) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
10382, 102syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
104100, 101, 103rspcdva 3579 . . . . . . . . . . . . . . 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 15 . . . . . . . . . . . . . 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 28209 . . . . . . . . . . . . 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 2825 . . . . . . . . . . . . 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 247 . . . . . . . . . . . 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 3195 . . . . . . . . . . 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 4021 . . . . . . . . . 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 4146 . . . . . . . . 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 4146 . . . . . . . 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 3970 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿‘suc 𝑗) ⊆ No )
11425, 26, 27precsexlem5 28224 . . . . . . . . 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 1135 . . . . . . . 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 1204 . . . . . . . . 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 771 . . . . . . . . . . . . . . . . . . 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 3933 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
120119leftnod 27893 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 No )
12146adantr 480 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 No )
122120, 121subscld 28076 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑥𝐿 -s 𝐴) ∈ No )
123 simpl3l 1230 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝐿𝑗) ⊆ No )
124 simprr 773 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 ∈ (𝐿𝑗))
125123, 124sseldd 3936 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
126122, 125mulscld 28148 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿) ∈ No )
127117, 126addscld 27993 . . . . . . . . . . . . . 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 17 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝑥𝐿)
129128gt0ne0sd 27832 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ≠ 0s )
13068adantr 480 . . . . . . . . . . . . . . . 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 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
132100, 130, 131rspcdva 3579 . . . . . . . . . . . . . . 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 15 . . . . . . . . . . . . . 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 28209 . . . . . . . . . . . . 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 2825 . . . . . . . . . . . . 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 247 . . . . . . . . . . . 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 3195 . . . . . . . . . . 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 4021 . . . . . . . . . 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 771 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ∈ ( R ‘𝐴))
141140rightnod 27895 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 No )
14246adantr 480 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 No )
143141, 142subscld 28076 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑥𝑅 -s 𝐴) ∈ No )
144 simpl3r 1231 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑅𝑗) ⊆ No )
145 simprr 773 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 ∈ (𝑅𝑗))
146144, 145sseldd 3936 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
147143, 146mulscld 28148 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅) ∈ No )
148139, 147addscld 27993 . . . . . . . . . . . . . 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 480 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝐴)
151140, 58syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 <s 𝑥𝑅)
152149, 142, 141, 150, 151ltstrd 27748 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝑥𝑅)
153152gt0ne0sd 27832 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ≠ 0s )
15468adantr 480 . . . . . . . . . . . . . . . 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 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
15666, 154, 155rspcdva 3579 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ( 0s <s 𝑥𝑅 → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
157152, 156mpd 15 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s )
158148, 141, 153, 157divsclwd 28209 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) ∈ No )
159 eleq1 2825 . . . . . . . . . . . . 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 247 . . . . . . . . . . . 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 3195 . . . . . . . . . . 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 4021 . . . . . . . . . 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 4146 . . . . . . . . 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 4146 . . . . . . . 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 3970 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝑅‘suc 𝑗) ⊆ No )
166113, 165jca 511 . . . . . 6 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))
1671663exp 1120 . . . . 5 (𝜑 → (𝑗 ∈ ω → (((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No ) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
168167com12 32 . . . 4 (𝑗 ∈ ω → (𝜑 → (((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No ) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
169168a2d 29 . . 3 (𝑗 ∈ ω → ((𝜑 → ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝜑 → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
1706, 12, 18, 24, 37, 169finds 7850 . 2 (𝐼 ∈ ω → (𝜑 → ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No )))
171170impcom 407 1 ((𝜑𝐼 ∈ ω) → ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No ))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1087   = wceq 1542  wcel 2114  {cab 2715  wral 3052  wrex 3062  {crab 3401  Vcvv 3442  csb 3851  cun 3901  wss 3903  c0 4287  {csn 4582  cop 4588   class class class wbr 5100  cmpt 5181  ccom 5638  suc csuc 6329  cfv 6502  (class class class)co 7370  ωcom 7820  1st c1st 7943  2nd c2nd 7944  reccrdg 8352   No csur 27624   <s clts 27625   0s c0s 27818   1s c1s 27819   L cleft 27838   R cright 27839   +s cadds 27972   -s csubs 28033   ·s cmuls 28119   /su cdivs 28200
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-rep 5226  ax-sep 5245  ax-nul 5255  ax-pow 5314  ax-pr 5381  ax-un 7692
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3063  df-rmo 3352  df-reu 3353  df-rab 3402  df-v 3444  df-sbc 3743  df-csb 3852  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-pss 3923  df-nul 4288  df-if 4482  df-pw 4558  df-sn 4583  df-pr 4585  df-tp 4587  df-op 4589  df-ot 4591  df-uni 4866  df-int 4905  df-iun 4950  df-br 5101  df-opab 5163  df-mpt 5182  df-tr 5208  df-id 5529  df-eprel 5534  df-po 5542  df-so 5543  df-fr 5587  df-se 5588  df-we 5589  df-xp 5640  df-rel 5641  df-cnv 5642  df-co 5643  df-dm 5644  df-rn 5645  df-res 5646  df-ima 5647  df-pred 6269  df-ord 6330  df-on 6331  df-lim 6332  df-suc 6333  df-iota 6458  df-fun 6504  df-fn 6505  df-f 6506  df-f1 6507  df-fo 6508  df-f1o 6509  df-fv 6510  df-riota 7327  df-ov 7373  df-oprab 7374  df-mpo 7375  df-om 7821  df-1st 7945  df-2nd 7946  df-frecs 8235  df-wrecs 8266  df-recs 8315  df-rdg 8353  df-1o 8409  df-2o 8410  df-nadd 8606  df-no 27627  df-lts 27628  df-bday 27629  df-les 27730  df-slts 27771  df-cuts 27773  df-0s 27820  df-1s 27821  df-made 27840  df-old 27841  df-left 27843  df-right 27844  df-norec 27951  df-norec2 27962  df-adds 27973  df-negs 28034  df-subs 28035  df-muls 28120  df-divs 28201
This theorem is referenced by:  precsexlem9  28228  precsexlem10  28229
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