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Theorem precsexlem8 28193
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 6833 . . . . . 6 (𝑖 = ∅ → (𝐿𝑖) = (𝐿‘∅))
21sseq1d 3964 . . . . 5 (𝑖 = ∅ → ((𝐿𝑖) ⊆ No ↔ (𝐿‘∅) ⊆ No ))
3 fveq2 6833 . . . . . 6 (𝑖 = ∅ → (𝑅𝑖) = (𝑅‘∅))
43sseq1d 3964 . . . . 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 6833 . . . . . 6 (𝑖 = 𝑗 → (𝐿𝑖) = (𝐿𝑗))
87sseq1d 3964 . . . . 5 (𝑖 = 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝑗) ⊆ No ))
9 fveq2 6833 . . . . . 6 (𝑖 = 𝑗 → (𝑅𝑖) = (𝑅𝑗))
109sseq1d 3964 . . . . 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 6833 . . . . . 6 (𝑖 = suc 𝑗 → (𝐿𝑖) = (𝐿‘suc 𝑗))
1413sseq1d 3964 . . . . 5 (𝑖 = suc 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿‘suc 𝑗) ⊆ No ))
15 fveq2 6833 . . . . . 6 (𝑖 = suc 𝑗 → (𝑅𝑖) = (𝑅‘suc 𝑗))
1615sseq1d 3964 . . . . 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 6833 . . . . . 6 (𝑖 = 𝐼 → (𝐿𝑖) = (𝐿𝐼))
2019sseq1d 3964 . . . . 5 (𝑖 = 𝐼 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝐼) ⊆ No ))
21 fveq2 6833 . . . . . 6 (𝑖 = 𝐼 → (𝑅𝑖) = (𝑅𝐼))
2221sseq1d 3964 . . . . 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 28186 . . . . . 6 (𝐿‘∅) = { 0s }
29 0sno 27805 . . . . . . 7 0s No
30 snssi 4763 . . . . . . 7 ( 0s No → { 0s } ⊆ No )
3129, 30ax-mp 5 . . . . . 6 { 0s } ⊆ No
3228, 31eqsstri 3979 . . . . 5 (𝐿‘∅) ⊆ No
3325, 26, 27precsexlem2 28187 . . . . . 6 (𝑅‘∅) = ∅
34 0ss 4351 . . . . . 6 ∅ ⊆ No
3533, 34eqsstri 3979 . . . . 5 (𝑅‘∅) ⊆ No
3632, 35pm3.2i 470 . . . 4 ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No )
3736a1i 11 . . 3 (𝜑 → ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No ))
3825, 26, 27precsexlem4 28189 . . . . . . . . 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 1sno 27806 . . . . . . . . . . . . . . . 16 1s No
4241a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 1s No )
43 rightssno 27862 . . . . . . . . . . . . . . . . . 18 ( R ‘𝐴) ⊆ No
44 simprl 771 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ∈ ( R ‘𝐴))
4543, 44sselid 3930 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 No )
46 precsexlem.4 . . . . . . . . . . . . . . . . . . 19 (𝜑𝐴 No )
47463ad2ant1 1134 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → 𝐴 No )
4847adantr 480 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 No )
4945, 48subscld 28043 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑥𝑅 -s 𝐴) ∈ No )
50 simpl3l 1230 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝐿𝑗) ⊆ No )
51 simprr 773 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 ∈ (𝐿𝑗))
5250, 51sseldd 3933 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
5349, 52mulscld 28115 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿) ∈ No )
5442, 53addscld 27960 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) ∈ No )
5529a1i 11 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s No )
56 precsexlem.5 . . . . . . . . . . . . . . . . . 18 (𝜑 → 0s <s 𝐴)
57563ad2ant1 1134 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → 0s <s 𝐴)
5857adantr 480 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝐴)
59 rightgt 27844 . . . . . . . . . . . . . . . . 17 (𝑥𝑅 ∈ ( R ‘𝐴) → 𝐴 <s 𝑥𝑅)
6044, 59syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 <s 𝑥𝑅)
6155, 48, 45, 58, 60slttrd 27733 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝑥𝑅)
6261sgt0ne0d 27815 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ≠ 0s )
63 breq2 5101 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝑅 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝑅))
64 oveq1 7365 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝑅 → (𝑥𝑂 ·s 𝑦) = (𝑥𝑅 ·s 𝑦))
6564eqeq1d 2737 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝑅 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝑅 ·s 𝑦) = 1s ))
6665rexbidv 3159 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝑅 → (∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ↔ ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
6763, 66imbi12d 344 . . . . . . . . . . . . . . . 16 (𝑥𝑂 = 𝑥𝑅 → (( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ) ↔ ( 0s <s 𝑥𝑅 → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s )))
68 precsexlem.6 . . . . . . . . . . . . . . . . . 18 (𝜑 → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
69683ad2ant1 1134 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
7069adantr 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 ))
71 elun2 4134 . . . . . . . . . . . . . . . . 17 (𝑥𝑅 ∈ ( R ‘𝐴) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
7244, 71syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
7367, 70, 72rspcdva 3576 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ( 0s <s 𝑥𝑅 → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
7461, 73mpd 15 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s )
7554, 45, 62, 74divsclwd 28176 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) ∈ No )
76 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 ))
7775, 76syl5ibrcom 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 ))
7877rexlimdvva 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 ))
7978abssdv 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 )
8041a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 1s No )
81 leftssno 27861 . . . . . . . . . . . . . . . . . 18 ( L ‘𝐴) ⊆ No
82 ssrab2 4031 . . . . . . . . . . . . . . . . . . 19 {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ⊆ ( L ‘𝐴)
83 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})
8482, 83sselid 3930 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
8581, 84sselid 3930 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 No )
8647adantr 480 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 No )
8785, 86subscld 28043 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑥𝐿 -s 𝐴) ∈ No )
88 simpl3r 1231 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑅𝑗) ⊆ No )
89 simprr 773 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 ∈ (𝑅𝑗))
9088, 89sseldd 3933 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
9187, 90mulscld 28115 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅) ∈ No )
9280, 91addscld 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 )
93 breq2 5101 . . . . . . . . . . . . . . . . . 18 (𝑥 = 𝑥𝐿 → ( 0s <s 𝑥 ↔ 0s <s 𝑥𝐿))
9493elrab 3645 . . . . . . . . . . . . . . . . 17 (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ↔ (𝑥𝐿 ∈ ( L ‘𝐴) ∧ 0s <s 𝑥𝐿))
9594simprbi 496 . . . . . . . . . . . . . . . 16 (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} → 0s <s 𝑥𝐿)
9683, 95syl 17 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝑥𝐿)
9796sgt0ne0d 27815 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ≠ 0s )
98 breq2 5101 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝐿 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝐿))
99 oveq1 7365 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝐿 → (𝑥𝑂 ·s 𝑦) = (𝑥𝐿 ·s 𝑦))
10099eqeq1d 2737 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝐿 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝐿 ·s 𝑦) = 1s ))
101100rexbidv 3159 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝐿 → (∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ↔ ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s ))
10298, 101imbi12d 344 . . . . . . . . . . . . . . . 16 (𝑥𝑂 = 𝑥𝐿 → (( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ) ↔ ( 0s <s 𝑥𝐿 → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s )))
10369adantr 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 ))
104 elun1 4133 . . . . . . . . . . . . . . . . 17 (𝑥𝐿 ∈ ( L ‘𝐴) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
10584, 104syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
106102, 103, 105rspcdva 3576 . . . . . . . . . . . . . . 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 ))
10796, 106mpd 15 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s )
10892, 85, 97, 107divsclwd 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 )
109 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 ))
110108, 109syl5ibrcom 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 ))
111110rexlimdvva 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 ))
112111abssdv 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 )
11379, 112unssd 4143 . . . . . . . . 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 )
11440, 113unssd 4143 . . . . . . . 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 )
11539, 114eqsstrd 3967 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿‘suc 𝑗) ⊆ No )
11625, 26, 27precsexlem5 28190 . . . . . . . . 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)})))
1171163ad2ant2 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)})))
118 simp3r 1204 . . . . . . . . 9 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝑅𝑗) ⊆ No )
11941a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 1s No )
120 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})
12182, 120sselid 3930 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
12281, 121sselid 3930 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 No )
12347adantr 480 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 No )
124122, 123subscld 28043 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑥𝐿 -s 𝐴) ∈ No )
125 simpl3l 1230 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝐿𝑗) ⊆ No )
126 simprr 773 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 ∈ (𝐿𝑗))
127125, 126sseldd 3933 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
128124, 127mulscld 28115 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿) ∈ No )
129119, 128addscld 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 )
130120, 95syl 17 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝑥𝐿)
131130sgt0ne0d 27815 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ≠ 0s )
13269adantr 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 ))
133121, 104syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
134102, 132, 133rspcdva 3576 . . . . . . . . . . . . . . 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 ))
135130, 134mpd 15 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ∃𝑦 No (𝑥𝐿 ·s 𝑦) = 1s )
136129, 122, 131, 135divsclwd 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 )
137 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 ))
138136, 137syl5ibrcom 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 ))
139138rexlimdvva 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 ))
140139abssdv 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 )
14141a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 1s No )
142 simprl 771 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ∈ ( R ‘𝐴))
14343, 142sselid 3930 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 No )
14447adantr 480 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 No )
145143, 144subscld 28043 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑥𝑅 -s 𝐴) ∈ No )
146 simpl3r 1231 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑅𝑗) ⊆ No )
147 simprr 773 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 ∈ (𝑅𝑗))
148146, 147sseldd 3933 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
149145, 148mulscld 28115 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅) ∈ No )
150141, 149addscld 27960 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) ∈ No )
15129a1i 11 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s No )
15257adantr 480 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝐴)
153142, 59syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 <s 𝑥𝑅)
154151, 144, 143, 152, 153slttrd 27733 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝑥𝑅)
155154sgt0ne0d 27815 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ≠ 0s )
15669adantr 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 ))
157142, 71syl 17 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴)))
15867, 156, 157rspcdva 3576 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ( 0s <s 𝑥𝑅 → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s ))
159154, 158mpd 15 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ∃𝑦 No (𝑥𝑅 ·s 𝑦) = 1s )
160150, 143, 155, 159divsclwd 28176 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) ∈ No )
161 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 ))
162160, 161syl5ibrcom 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 ))
163162rexlimdvva 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 ))
164163abssdv 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 )
165140, 164unssd 4143 . . . . . . . . 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 )
166118, 165unssd 4143 . . . . . . . 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 )
167117, 166eqsstrd 3967 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝑅‘suc 𝑗) ⊆ No )
168115, 167jca 511 . . . . . 6 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))
1691683exp 1120 . . . . 5 (𝜑 → (𝑗 ∈ ω → (((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No ) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
170169com12 32 . . . 4 (𝑗 ∈ ω → (𝜑 → (((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No ) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
171170a2d 29 . . 3 (𝑗 ∈ ω → ((𝜑 → ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝜑 → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))))
1726, 12, 18, 24, 37, 171finds 7838 . 2 (𝐼 ∈ ω → (𝜑 → ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No )))
173172impcom 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 3050  wrex 3059  {crab 3398  Vcvv 3439  csb 3848  cun 3898  wss 3900  c0 4284  {csn 4579  cop 4585   class class class wbr 5097  cmpt 5178  ccom 5627  suc csuc 6318  cfv 6491  (class class class)co 7358  ωcom 7808  1st c1st 7931  2nd c2nd 7932  reccrdg 8340   No csur 27609   <s cslt 27610   0s c0s 27801   1s c1s 27802   L cleft 27821   R cright 27822   +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 2183  ax-ext 2707  ax-rep 5223  ax-sep 5240  ax-nul 5250  ax-pow 5309  ax-pr 5376  ax-un 7680
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 2932  df-ral 3051  df-rex 3060  df-rmo 3349  df-reu 3350  df-rab 3399  df-v 3441  df-sbc 3740  df-csb 3849  df-dif 3903  df-un 3905  df-in 3907  df-ss 3917  df-pss 3920  df-nul 4285  df-if 4479  df-pw 4555  df-sn 4580  df-pr 4582  df-tp 4584  df-op 4586  df-ot 4588  df-uni 4863  df-int 4902  df-iun 4947  df-br 5098  df-opab 5160  df-mpt 5179  df-tr 5205  df-id 5518  df-eprel 5523  df-po 5531  df-so 5532  df-fr 5576  df-se 5577  df-we 5578  df-xp 5629  df-rel 5630  df-cnv 5631  df-co 5632  df-dm 5633  df-rn 5634  df-res 5635  df-ima 5636  df-pred 6258  df-ord 6319  df-on 6320  df-lim 6321  df-suc 6322  df-iota 6447  df-fun 6493  df-fn 6494  df-f 6495  df-f1 6496  df-fo 6497  df-f1o 6498  df-fv 6499  df-riota 7315  df-ov 7361  df-oprab 7362  df-mpo 7363  df-om 7809  df-1st 7933  df-2nd 7934  df-frecs 8223  df-wrecs 8254  df-recs 8303  df-rdg 8341  df-1o 8397  df-2o 8398  df-nadd 8594  df-no 27612  df-slt 27613  df-bday 27614  df-sle 27715  df-sslt 27756  df-scut 27758  df-0s 27803  df-1s 27804  df-made 27823  df-old 27824  df-left 27826  df-right 27827  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  28194  precsexlem10  28195
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