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Theorem precsexlem8 28387
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 6885 . . . . . 6 (𝑖 = ∅ → (𝐿𝑖) = (𝐿‘∅))
21sseq1d 3976 . . . . 5 (𝑖 = ∅ → ((𝐿𝑖) ⊆ No ↔ (𝐿‘∅) ⊆ No ))
3 fveq2 6885 . . . . . 6 (𝑖 = ∅ → (𝑅𝑖) = (𝑅‘∅))
43sseq1d 3976 . . . . 5 (𝑖 = ∅ → ((𝑅𝑖) ⊆ No ↔ (𝑅‘∅) ⊆ No ))
52, 4anbi12d 643 . . . 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 6885 . . . . . 6 (𝑖 = 𝑗 → (𝐿𝑖) = (𝐿𝑗))
87sseq1d 3976 . . . . 5 (𝑖 = 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝑗) ⊆ No ))
9 fveq2 6885 . . . . . 6 (𝑖 = 𝑗 → (𝑅𝑖) = (𝑅𝑗))
109sseq1d 3976 . . . . 5 (𝑖 = 𝑗 → ((𝑅𝑖) ⊆ No ↔ (𝑅𝑗) ⊆ No ))
118, 10anbi12d 643 . . . 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 6885 . . . . . 6 (𝑖 = suc 𝑗 → (𝐿𝑖) = (𝐿‘suc 𝑗))
1413sseq1d 3976 . . . . 5 (𝑖 = suc 𝑗 → ((𝐿𝑖) ⊆ No ↔ (𝐿‘suc 𝑗) ⊆ No ))
15 fveq2 6885 . . . . . 6 (𝑖 = suc 𝑗 → (𝑅𝑖) = (𝑅‘suc 𝑗))
1615sseq1d 3976 . . . . 5 (𝑖 = suc 𝑗 → ((𝑅𝑖) ⊆ No ↔ (𝑅‘suc 𝑗) ⊆ No ))
1714, 16anbi12d 643 . . . 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 6885 . . . . . 6 (𝑖 = 𝐼 → (𝐿𝑖) = (𝐿𝐼))
2019sseq1d 3976 . . . . 5 (𝑖 = 𝐼 → ((𝐿𝑖) ⊆ No ↔ (𝐿𝐼) ⊆ No ))
21 fveq2 6885 . . . . . 6 (𝑖 = 𝐼 → (𝑅𝑖) = (𝑅𝐼))
2221sseq1d 3976 . . . . 5 (𝑖 = 𝐼 → ((𝑅𝑖) ⊆ No ↔ (𝑅𝐼) ⊆ No ))
2320, 22anbi12d 643 . . . 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 28380 . . . . . 6 (𝐿‘∅) = { 0s }
29 0no 27982 . . . . . . 7 0s No
30 snssi 4756 . . . . . . 7 ( 0s No → { 0s } ⊆ No )
3129, 30ax-mp 5 . . . . . 6 { 0s } ⊆ No
3228, 31eqsstri 3991 . . . . 5 (𝐿‘∅) ⊆ No
3325, 26, 27precsexlem2 28381 . . . . . 6 (𝑅‘∅) = ∅
34 0ss 4364 . . . . . 6 ∅ ⊆ No
3533, 34eqsstri 3991 . . . . 5 (𝑅‘∅) ⊆ No
3632, 35pm3.2i 475 . . . 4 ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No )
3736a1i 11 . . 3 (𝜑 → ((𝐿‘∅) ⊆ No ∧ (𝑅‘∅) ⊆ No ))
3825, 26, 27precsexlem4 28383 . . . . . . . . 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 1150 . . . . . . . 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 1218 . . . . . . . . 9 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿𝑗) ⊆ No )
41 1no 27983 . . . . . . . . . . . . . . . 16 1s No
4241a1i 11 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 1s No )
43 simprl 782 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ∈ ( R ‘𝐴))
4443rightnod 28055 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 No )
45 precsexlem.4 . . . . . . . . . . . . . . . . . . 19 (𝜑𝐴 No )
46453ad2ant1 1149 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → 𝐴 No )
4746adantr 485 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 No )
4844, 47subscld 28236 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑥𝑅 -s 𝐴) ∈ No )
49 simpl3l 1245 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝐿𝑗) ⊆ No )
50 simprr 784 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 ∈ (𝐿𝑗))
5149, 50sseldd 3946 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
5248, 51mulscld 28308 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿) ∈ No )
5342, 52addscld 28153 . . . . . . . . . . . . . 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 1149 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → 0s <s 𝐴)
5756adantr 485 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝐴)
58 rightgt 28027 . . . . . . . . . . . . . . . . 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 27907 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 0s <s 𝑥𝑅)
6160gt0ne0sd 27992 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝑅 ≠ 0s )
62 breq2 5118 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝑅 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝑅))
63 oveq1 7421 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝑅 → (𝑥𝑂 ·s 𝑦) = (𝑥𝑅 ·s 𝑦))
6463eqeq1d 2772 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝑅 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝑅 ·s 𝑦) = 1s ))
6564rexbidv 3196 . . . . . . . . . . . . . . . . 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 1149 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ∀𝑥𝑂 ∈ (( L ‘𝐴) ∪ ( R ‘𝐴))( 0s <s 𝑥𝑂 → ∃𝑦 No (𝑥𝑂 ·s 𝑦) = 1s ))
6968adantr 485 . . . . . . . . . . . . . . . 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 4144 . . . . . . . . . . . . . . . . 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 3590 . . . . . . . . . . . . . . 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 28369 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝐿)) /su 𝑥𝑅) ∈ No )
75 eleq1 2858 . . . . . . . . . . . . 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 3229 . . . . . . . . . . 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 4029 . . . . . . . . . 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 4042 . . . . . . . . . . . . . . . . . . 19 {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ⊆ ( L ‘𝐴)
81 simprl 782 . . . . . . . . . . . . . . . . . . 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 3943 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
8382leftnod 28053 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 No )
8446adantr 485 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 No )
8583, 84subscld 28236 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑥𝐿 -s 𝐴) ∈ No )
86 simpl3r 1246 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑅𝑗) ⊆ No )
87 simprr 784 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 ∈ (𝑅𝑗))
8886, 87sseldd 3946 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
8985, 88mulscld 28308 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝑅) ∈ No )
9079, 89addscld 28153 . . . . . . . . . . . . . 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 5118 . . . . . . . . . . . . . . . . . 18 (𝑥 = 𝑥𝐿 → ( 0s <s 𝑥 ↔ 0s <s 𝑥𝐿))
9291elrab 3658 . . . . . . . . . . . . . . . . 17 (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ↔ (𝑥𝐿 ∈ ( L ‘𝐴) ∧ 0s <s 𝑥𝐿))
9392simprbi 502 . . . . . . . . . . . . . . . 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 27992 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝐿 ≠ 0s )
96 breq2 5118 . . . . . . . . . . . . . . . . 17 (𝑥𝑂 = 𝑥𝐿 → ( 0s <s 𝑥𝑂 ↔ 0s <s 𝑥𝐿))
97 oveq1 7421 . . . . . . . . . . . . . . . . . . 19 (𝑥𝑂 = 𝑥𝐿 → (𝑥𝑂 ·s 𝑦) = (𝑥𝐿 ·s 𝑦))
9897eqeq1d 2772 . . . . . . . . . . . . . . . . . 18 (𝑥𝑂 = 𝑥𝐿 → ((𝑥𝑂 ·s 𝑦) = 1s ↔ (𝑥𝐿 ·s 𝑦) = 1s ))
9998rexbidv 3196 . . . . . . . . . . . . . . . . 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 485 . . . . . . . . . . . . . . . 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 4143 . . . . . . . . . . . . . . . . 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 3590 . . . . . . . . . . . . . . 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 28369 . . . . . . . . . . . . 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 2858 . . . . . . . . . . . . 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 3229 . . . . . . . . . . 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 4029 . . . . . . . . . 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 4153 . . . . . . . . 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 4153 . . . . . . . 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 3979 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝐿‘suc 𝑗) ⊆ No )
11425, 26, 27precsexlem5 28384 . . . . . . . . 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 1150 . . . . . . . 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 1219 . . . . . . . . 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 782 . . . . . . . . . . . . . . . . . . 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 3943 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ∈ ( L ‘𝐴))
120119leftnod 28053 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 No )
12146adantr 485 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝐴 No )
122120, 121subscld 28236 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝑥𝐿 -s 𝐴) ∈ No )
123 simpl3l 1245 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → (𝐿𝑗) ⊆ No )
124 simprr 784 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 ∈ (𝐿𝑗))
125123, 124sseldd 3946 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑦𝐿 No )
126122, 125mulscld 28308 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → ((𝑥𝐿 -s 𝐴) ·s 𝑦𝐿) ∈ No )
127117, 126addscld 28153 . . . . . . . . . . . . . 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 27992 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝐿 ∈ {𝑥 ∈ ( L ‘𝐴) ∣ 0s <s 𝑥} ∧ 𝑦𝐿 ∈ (𝐿𝑗))) → 𝑥𝐿 ≠ 0s )
13068adantr 485 . . . . . . . . . . . . . . . 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 3590 . . . . . . . . . . . . . . 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 28369 . . . . . . . . . . . . 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 2858 . . . . . . . . . . . . 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 3229 . . . . . . . . . . 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 4029 . . . . . . . . . 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 782 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ∈ ( R ‘𝐴))
141140rightnod 28055 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 No )
14246adantr 485 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝐴 No )
143141, 142subscld 28236 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑥𝑅 -s 𝐴) ∈ No )
144 simpl3r 1246 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (𝑅𝑗) ⊆ No )
145 simprr 784 . . . . . . . . . . . . . . . . 17 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 ∈ (𝑅𝑗))
146144, 145sseldd 3946 . . . . . . . . . . . . . . . 16 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑦𝑅 No )
147143, 146mulscld 28308 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅) ∈ No )
148139, 147addscld 28153 . . . . . . . . . . . . . 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 485 . . . . . . . . . . . . . . . 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 27907 . . . . . . . . . . . . . . 15 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 0s <s 𝑥𝑅)
153152gt0ne0sd 27992 . . . . . . . . . . . . . 14 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → 𝑥𝑅 ≠ 0s )
15468adantr 485 . . . . . . . . . . . . . . . 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 3590 . . . . . . . . . . . . . . 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 28369 . . . . . . . . . . . . 13 (((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑦𝑅 ∈ (𝑅𝑗))) → (( 1s +s ((𝑥𝑅 -s 𝐴) ·s 𝑦𝑅)) /su 𝑥𝑅) ∈ No )
159 eleq1 2858 . . . . . . . . . . . . 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 3229 . . . . . . . . . . 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 4029 . . . . . . . . . 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 4153 . . . . . . . . 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 4153 . . . . . . . 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 3979 . . . . . . 7 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → (𝑅‘suc 𝑗) ⊆ No )
166113, 165jca 520 . . . . . 6 ((𝜑𝑗 ∈ ω ∧ ((𝐿𝑗) ⊆ No ∧ (𝑅𝑗) ⊆ No )) → ((𝐿‘suc 𝑗) ⊆ No ∧ (𝑅‘suc 𝑗) ⊆ No ))
1671663exp 1135 . . . . 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 412 1 ((𝜑𝐼 ∈ ω) → ((𝐿𝐼) ⊆ No ∧ (𝑅𝐼) ⊆ No ))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 400  w3a 1101   = wceq 1568  wcel 2150  {cab 2748  wral 3086  wrex 3096  {crab 3423  Vcvv 3462  csb 3861  cun 3911  wss 3913  c0 4294  {csn 4594  cop 4600   class class class wbr 5114  cmpt 5197  ccom 5669  suc csuc 6366  cfv 6540  (class class class)co 7414  ωcom 7865  1st c1st 7987  2nd c2nd 7988  reccrdg 8399   No csur 27784   <s clts 27785   0s c0s 27978   1s c1s 27979   L cleft 27998   R cright 27999   +s cadds 28132   -s csubs 28193   ·s cmuls 28279   /su cdivs 28360
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1823  ax-4 1837  ax-5 1938  ax-6 1995  ax-7 2036  ax-8 2152  ax-9 2160  ax-10 2183  ax-11 2199  ax-12 2220  ax-ext 2742  ax-rep 5243  ax-sep 5262  ax-nul 5274  ax-pow 5340  ax-pr 5408  ax-un 7736
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1571  df-fal 1581  df-ex 1808  df-nf 1812  df-sb 2099  df-mo 2574  df-eu 2604  df-clab 2749  df-cleq 2762  df-clel 2845  df-nfc 2919  df-ne 2966  df-ral 3087  df-rex 3097  df-rmo 3376  df-reu 3377  df-rab 3424  df-v 3464  df-sbc 3753  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-pss 3933  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-tp 4599  df-op 4601  df-ot 4603  df-uni 4878  df-int 4918  df-iun 4963  df-br 5115  df-opab 5179  df-mpt 5198  df-tr 5224  df-id 5560  df-eprel 5565  df-po 5573  df-so 5574  df-fr 5618  df-se 5619  df-we 5620  df-xp 5671  df-rel 5672  df-cnv 5673  df-co 5674  df-dm 5675  df-rn 5676  df-res 5677  df-ima 5678  df-pred 6306  df-ord 6367  df-on 6368  df-lim 6369  df-suc 6370  df-iota 6496  df-fun 6542  df-fn 6543  df-f 6544  df-f1 6545  df-fo 6546  df-f1o 6547  df-fv 6548  df-riota 7371  df-ov 7417  df-oprab 7418  df-mpo 7419  df-om 7866  df-1st 7989  df-2nd 7990  df-frecs 8281  df-wrecs 8312  df-recs 8361  df-rdg 8400  df-1o 8456  df-2o 8457  df-nadd 8655  df-no 27787  df-lts 27788  df-bday 27789  df-les 27889  df-slts 27931  df-cuts 27933  df-0s 27980  df-1s 27981  df-made 28000  df-old 28001  df-left 28003  df-right 28004  df-norec 28111  df-norec2 28122  df-adds 28133  df-negs 28194  df-subs 28195  df-muls 28280  df-divs 28361
This theorem is referenced by:  precsexlem9  28388  precsexlem10  28389
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