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Theorem precsexlem8 28194
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 6829 . . . . . 6 (𝑖 = ∅ → (𝐿𝑖) = (𝐿‘∅))
21sseq1d 3948 . . . . 5 (𝑖 = ∅ → ((𝐿𝑖) ⊆ No ↔ (𝐿‘∅) ⊆ No ))
3 fveq2 6829 . . . . . 6 (𝑖 = ∅ → (𝑅𝑖) = (𝑅‘∅))
43sseq1d 3948 . . . . 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 6829 . . . . . 6 (𝑖 = 𝑗 → (𝐿𝑖) = (𝐿𝑗))
87sseq1d 3948 . . . . 5 (𝑖 = 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝑗) ⊆ No ))
9 fveq2 6829 . . . . . 6 (𝑖 = 𝑗 → (𝑅𝑖) = (𝑅𝑗))
109sseq1d 3948 . . . . 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 6829 . . . . . 6 (𝑖 = suc 𝑗 → (𝐿𝑖) = (𝐿‘suc 𝑗))
1413sseq1d 3948 . . . . 5 (𝑖 = suc 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿‘suc 𝑗) ⊆ No ))
15 fveq2 6829 . . . . . 6 (𝑖 = suc 𝑗 → (𝑅𝑖) = (𝑅‘suc 𝑗))
1615sseq1d 3948 . . . . 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 6829 . . . . . 6 (𝑖 = 𝐼 → (𝐿𝑖) = (𝐿𝐼))
2019sseq1d 3948 . . . . 5 (𝑖 = 𝐼 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝐼) ⊆ No ))
21 fveq2 6829 . . . . . 6 (𝑖 = 𝐼 → (𝑅𝑖) = (𝑅𝐼))
2221sseq1d 3948 . . . . 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 28187 . . . . . 6 (𝐿‘∅) = { 0s }
29 0no 27789 . . . . . . 7 0s No
30 snssi 4719 . . . . . . 7 ( 0s No → { 0s } ⊆ No )
3129, 30ax-mp 5 . . . . . 6 { 0s } ⊆ No
3228, 31eqsstri 3963 . . . . 5 (𝐿‘∅) ⊆ No
3325, 26, 27precsexlem2 28188 . . . . . 6 (𝑅‘∅) = ∅
34 0ss 4330 . . . . . 6 ∅ ⊆ No
3533, 34eqsstri 3963 . . . . 5 (𝑅‘∅) ⊆ No
3632, 35pm3.2i 470 . . . 4 ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No )
3736a1i 11 . . 3 (𝜑 → ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No ))
3825, 26, 27precsexlem4 28190 . . . . . . . . 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 27790 . . . . . . . . . . . . . . . 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 27862 . . . . . . . . . . . . . . . . 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 28043 . . . . . . . . . . . . . . . 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 3918 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
5248, 51mulscld 28115 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿) ∈ No )
5342, 52addscld 27960 . . . . . . . . . . . . . 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 27834 . . . . . . . . . . . . . . . . 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 27715 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝑥𝑅)
6160gt0ne0sd 27799 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ≠ 0s )
62 breq2 5078 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝑅 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝑅))
63 oveq1 7363 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝑅 → (𝑥𝑂 ·s 𝑦) = (𝑥𝑅 ·s 𝑦))
6463eqeq1d 2737 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝑅 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝑅 ·s 𝑦) = 1s ))
6564rexbidv 3159 . . . . . . . . . . . . . . . . 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 4114 . . . . . . . . . . . . . . . . 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 3563 . . . . . . . . . . . . . . 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 28176 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) ∈ No )
75 eleq1 2823 . . . . . . . . . . . . 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 3192 . . . . . . . . . . 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 4000 . . . . . . . . . 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 4013 . . . . . . . . . . . . . . . . . . 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 3915 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
8382leftnod 27860 . . . . . . . . . . . . . . . . 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 28043 . . . . . . . . . . . . . . . 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 3918 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
8985, 88mulscld 28115 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅) ∈ No )
9079, 89addscld 27960 . . . . . . . . . . . . . 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 5078 . . . . . . . . . . . . . . . . . 18 (𝑥 = 𝑥𝐿 → ( 0s <s 𝑥 ↔ 0s <s 𝑥𝐿))
9291elrab 3631 . . . . . . . . . . . . . . . . 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 27799 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ≠ 0s )
96 breq2 5078 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝐿 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝐿))
97 oveq1 7363 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝐿 → (𝑥𝑂 ·s 𝑦) = (𝑥𝐿 ·s 𝑦))
9897eqeq1d 2737 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝐿 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝐿 ·s 𝑦) = 1s ))
9998rexbidv 3159 . . . . . . . . . . . . . . . . 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 4113 . . . . . . . . . . . . . . . . 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 3563 . . . . . . . . . . . . . . 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 28176 . . . . . . . . . . . . 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 2823 . . . . . . . . . . . . 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 3192 . . . . . . . . . . 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 4000 . . . . . . . . . 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 4123 . . . . . . . . 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 4123 . . . . . . . 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 3951 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿‘suc 𝑗) ⊆ No )
11425, 26, 27precsexlem5 28191 . . . . . . . . 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 3915 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
120119leftnod 27860 . . . . . . . . . . . . . . . . 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 28043 . . . . . . . . . . . . . . . 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 3918 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
126122, 125mulscld 28115 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿) ∈ No )
127117, 126addscld 27960 . . . . . . . . . . . . . 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 27799 . . . . . . . . . . . . . 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 3563 . . . . . . . . . . . . . . 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 28176 . . . . . . . . . . . . 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 2823 . . . . . . . . . . . . 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 3192 . . . . . . . . . . 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 4000 . . . . . . . . . 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 27862 . . . . . . . . . . . . . . . . 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 28043 . . . . . . . . . . . . . . . 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 3918 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
147143, 146mulscld 28115 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅) ∈ No )
148139, 147addscld 27960 . . . . . . . . . . . . . 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 27715 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝑥𝑅)
153152gt0ne0sd 27799 . . . . . . . . . . . . . 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 3563 . . . . . . . . . . . . . . 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 28176 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) ∈ No )
159 eleq1 2823 . . . . . . . . . . . . 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 3192 . . . . . . . . . . 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 4000 . . . . . . . . . 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 4123 . . . . . . . . 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 4123 . . . . . . . 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 3951 . . . . . . 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 7836 . 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 2713  wral 3049  wrex 3059  {crab 3387  Vcvv 3427  csb 3833  cun 3883  wss 3885  c0 4263  {csn 4557  cop 4563   class class class wbr 5074  cmpt 5155  ccom 5624  suc csuc 6314  cfv 6487  (class class class)co 7356  ωcom 7806  1st c1st 7929  2nd c2nd 7930  reccrdg 8337   No csur 27591   <s clts 27592   0s c0s 27785   1s c1s 27786   L cleft 27805   R cright 27806   +s cadds 27939   -s csubs 28000   ·s cmuls 28086   /su cdivs 28167
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 2184  ax-ext 2707  ax-rep 5201  ax-sep 5220  ax-nul 5230  ax-pow 5296  ax-pr 5364  ax-un 7678
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 2538  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2810  df-nfc 2884  df-ne 2931  df-ral 3050  df-rex 3060  df-rmo 3340  df-reu 3341  df-rab 3388  df-v 3429  df-sbc 3726  df-csb 3834  df-dif 3888  df-un 3890  df-in 3892  df-ss 3902  df-pss 3905  df-nul 4264  df-if 4457  df-pw 4533  df-sn 4558  df-pr 4560  df-tp 4562  df-op 4564  df-ot 4566  df-uni 4841  df-int 4880  df-iun 4925  df-br 5075  df-opab 5137  df-mpt 5156  df-tr 5182  df-id 5515  df-eprel 5520  df-po 5528  df-so 5529  df-fr 5573  df-se 5574  df-we 5575  df-xp 5626  df-rel 5627  df-cnv 5628  df-co 5629  df-dm 5630  df-rn 5631  df-res 5632  df-ima 5633  df-pred 6254  df-ord 6315  df-on 6316  df-lim 6317  df-suc 6318  df-iota 6443  df-fun 6489  df-fn 6490  df-f 6491  df-f1 6492  df-fo 6493  df-f1o 6494  df-fv 6495  df-riota 7313  df-ov 7359  df-oprab 7360  df-mpo 7361  df-om 7807  df-1st 7931  df-2nd 7932  df-frecs 8220  df-wrecs 8251  df-recs 8300  df-rdg 8338  df-1o 8394  df-2o 8395  df-nadd 8591  df-no 27594  df-lts 27595  df-bday 27596  df-les 27697  df-slts 27738  df-cuts 27740  df-0s 27787  df-1s 27788  df-made 27807  df-old 27808  df-left 27810  df-right 27811  df-norec 27918  df-norec2 27929  df-adds 27940  df-negs 28001  df-subs 28002  df-muls 28087  df-divs 28168
This theorem is referenced by:  precsexlem9  28195  precsexlem10  28196
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