iccelpart - Mathbox for Alexander van der Vekens

	Mathbox for Alexander van der Vekens		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > Mathboxes > iccelpart		Structured version Visualization version GIF version

Theorem iccelpart 47905

Description: An element of any partitioned half-open interval of extended reals is an element of a part of this partition. (Contributed by AV, 18-Jul-2020.)

**Assertion**
Ref	Expression
iccelpart	⊢ (𝑀 ∈ ℕ → ∀𝑝 ∈ (RePart‘𝑀)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑀)) → ∃𝑖 ∈ (0..^𝑀)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))

Distinct variable groups: 𝑖,𝑀,𝑝 𝑖,𝑋,𝑝

Proof of Theorem iccelpart Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		fveq2 6834	. . 3 ⊢ (𝑥 = 1 → (RePart‘𝑥) = (RePart‘1))
2		fveq2 6834	. . . . . 6 ⊢ (𝑥 = 1 → (𝑝‘𝑥) = (𝑝‘1))
3	2	oveq2d 7376	. . . . 5 ⊢ (𝑥 = 1 → ((𝑝‘0)[,)(𝑝‘𝑥)) = ((𝑝‘0)[,)(𝑝‘1)))
4	3	eleq2d 2823	. . . 4 ⊢ (𝑥 = 1 → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) ↔ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘1))))
5		oveq2 7368	. . . . . 6 ⊢ (𝑥 = 1 → (0..^𝑥) = (0..^1))
6		fzo01 13693	. . . . . 6 ⊢ (0..^1) = {0}
7	5, 6	eqtrdi 2788	. . . . 5 ⊢ (𝑥 = 1 → (0..^𝑥) = {0})
8	7	rexeqdv 3297	. . . 4 ⊢ (𝑥 = 1 → (∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ ∃𝑖 ∈ {0}𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
9	4, 8	imbi12d 344	. . 3 ⊢ (𝑥 = 1 → ((𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) → ∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘1)) → ∃𝑖 ∈ {0}𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
10	1, 9	raleqbidv 3312	. 2 ⊢ (𝑥 = 1 → (∀𝑝 ∈ (RePart‘𝑥)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) → ∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ ∀𝑝 ∈ (RePart‘1)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘1)) → ∃𝑖 ∈ {0}𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
11		fveq2 6834	. . 3 ⊢ (𝑥 = 𝑦 → (RePart‘𝑥) = (RePart‘𝑦))
12		fveq2 6834	. . . . . 6 ⊢ (𝑥 = 𝑦 → (𝑝‘𝑥) = (𝑝‘𝑦))
13	12	oveq2d 7376	. . . . 5 ⊢ (𝑥 = 𝑦 → ((𝑝‘0)[,)(𝑝‘𝑥)) = ((𝑝‘0)[,)(𝑝‘𝑦)))
14	13	eleq2d 2823	. . . 4 ⊢ (𝑥 = 𝑦 → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) ↔ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))))
15		oveq2 7368	. . . . 5 ⊢ (𝑥 = 𝑦 → (0..^𝑥) = (0..^𝑦))
16	15	rexeqdv 3297	. . . 4 ⊢ (𝑥 = 𝑦 → (∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
17	14, 16	imbi12d 344	. . 3 ⊢ (𝑥 = 𝑦 → ((𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) → ∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
18	11, 17	raleqbidv 3312	. 2 ⊢ (𝑥 = 𝑦 → (∀𝑝 ∈ (RePart‘𝑥)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) → ∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ ∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
19		fveq2 6834	. . 3 ⊢ (𝑥 = (𝑦 + 1) → (RePart‘𝑥) = (RePart‘(𝑦 + 1)))
20		fveq2 6834	. . . . . 6 ⊢ (𝑥 = (𝑦 + 1) → (𝑝‘𝑥) = (𝑝‘(𝑦 + 1)))
21	20	oveq2d 7376	. . . . 5 ⊢ (𝑥 = (𝑦 + 1) → ((𝑝‘0)[,)(𝑝‘𝑥)) = ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))))
22	21	eleq2d 2823	. . . 4 ⊢ (𝑥 = (𝑦 + 1) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) ↔ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1)))))
23		oveq2 7368	. . . . 5 ⊢ (𝑥 = (𝑦 + 1) → (0..^𝑥) = (0..^(𝑦 + 1)))
24	23	rexeqdv 3297	. . . 4 ⊢ (𝑥 = (𝑦 + 1) → (∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
25	22, 24	imbi12d 344	. . 3 ⊢ (𝑥 = (𝑦 + 1) → ((𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) → ∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
26	19, 25	raleqbidv 3312	. 2 ⊢ (𝑥 = (𝑦 + 1) → (∀𝑝 ∈ (RePart‘𝑥)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) → ∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ ∀𝑝 ∈ (RePart‘(𝑦 + 1))(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
27		fveq2 6834	. . 3 ⊢ (𝑥 = 𝑀 → (RePart‘𝑥) = (RePart‘𝑀))
28		fveq2 6834	. . . . . 6 ⊢ (𝑥 = 𝑀 → (𝑝‘𝑥) = (𝑝‘𝑀))
29	28	oveq2d 7376	. . . . 5 ⊢ (𝑥 = 𝑀 → ((𝑝‘0)[,)(𝑝‘𝑥)) = ((𝑝‘0)[,)(𝑝‘𝑀)))
30	29	eleq2d 2823	. . . 4 ⊢ (𝑥 = 𝑀 → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) ↔ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑀))))
31		oveq2 7368	. . . . 5 ⊢ (𝑥 = 𝑀 → (0..^𝑥) = (0..^𝑀))
32	31	rexeqdv 3297	. . . 4 ⊢ (𝑥 = 𝑀 → (∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ ∃𝑖 ∈ (0..^𝑀)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
33	30, 32	imbi12d 344	. . 3 ⊢ (𝑥 = 𝑀 → ((𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) → ∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑀)) → ∃𝑖 ∈ (0..^𝑀)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
34	27, 33	raleqbidv 3312	. 2 ⊢ (𝑥 = 𝑀 → (∀𝑝 ∈ (RePart‘𝑥)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑥)) → ∃𝑖 ∈ (0..^𝑥)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ ∀𝑝 ∈ (RePart‘𝑀)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑀)) → ∃𝑖 ∈ (0..^𝑀)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
35		0nn0 12443	. . . . 5 ⊢ 0 ∈ ℕ₀
36		fveq2 6834	. . . . . . . 8 ⊢ (𝑖 = 0 → (𝑝‘𝑖) = (𝑝‘0))
37		fv0p1e1 12290	. . . . . . . 8 ⊢ (𝑖 = 0 → (𝑝‘(𝑖 + 1)) = (𝑝‘1))
38	36, 37	oveq12d 7378	. . . . . . 7 ⊢ (𝑖 = 0 → ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) = ((𝑝‘0)[,)(𝑝‘1)))
39	38	eleq2d 2823	. . . . . 6 ⊢ (𝑖 = 0 → (𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘1))))
40	39	rexsng 4621	. . . . 5 ⊢ (0 ∈ ℕ₀ → (∃𝑖 ∈ {0}𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘1))))
41	35, 40	ax-mp 5	. . . 4 ⊢ (∃𝑖 ∈ {0}𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘1)))
42	41	biimpri 228	. . 3 ⊢ (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘1)) → ∃𝑖 ∈ {0}𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))
43	42	rgenw 3056	. 2 ⊢ ∀𝑝 ∈ (RePart‘1)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘1)) → ∃𝑖 ∈ {0}𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))
44		nfv 1916	. . . . 5 ⊢ Ⅎ𝑝 𝑦 ∈ ℕ
45		nfra1 3262	. . . . 5 ⊢ Ⅎ𝑝∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))
46	44, 45	nfan 1901	. . . 4 ⊢ Ⅎ𝑝(𝑦 ∈ ℕ ∧ ∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
47		nnnn0 12435	. . . . . . . . . 10 ⊢ (𝑦 ∈ ℕ → 𝑦 ∈ ℕ₀)
48		fzonn0p1 13688	. . . . . . . . . 10 ⊢ (𝑦 ∈ ℕ₀ → 𝑦 ∈ (0..^(𝑦 + 1)))
49	47, 48	syl 17	. . . . . . . . 9 ⊢ (𝑦 ∈ ℕ → 𝑦 ∈ (0..^(𝑦 + 1)))
50	49	ad2antrr 727	. . . . . . . 8 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑝 ∈ (RePart‘(𝑦 + 1)) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))))) → 𝑦 ∈ (0..^(𝑦 + 1)))
51		fveq2 6834	. . . . . . . . . . 11 ⊢ (𝑖 = 𝑦 → (𝑝‘𝑖) = (𝑝‘𝑦))
52		fvoveq1 7383	. . . . . . . . . . 11 ⊢ (𝑖 = 𝑦 → (𝑝‘(𝑖 + 1)) = (𝑝‘(𝑦 + 1)))
53	51, 52	oveq12d 7378	. . . . . . . . . 10 ⊢ (𝑖 = 𝑦 → ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) = ((𝑝‘𝑦)[,)(𝑝‘(𝑦 + 1))))
54	53	eleq2d 2823	. . . . . . . . 9 ⊢ (𝑖 = 𝑦 → (𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ 𝑋 ∈ ((𝑝‘𝑦)[,)(𝑝‘(𝑦 + 1)))))
55	54	adantl 481	. . . . . . . 8 ⊢ ((((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑝 ∈ (RePart‘(𝑦 + 1)) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))))) ∧ 𝑖 = 𝑦) → (𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ 𝑋 ∈ ((𝑝‘𝑦)[,)(𝑝‘(𝑦 + 1)))))
56		peano2nn 12177	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 ∈ ℕ → (𝑦 + 1) ∈ ℕ)
57	56	adantr 480	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑦 + 1) ∈ ℕ)
58		simpr 484	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → 𝑝 ∈ (RePart‘(𝑦 + 1)))
59	56	nnnn0d 12489	. . . . . . . . . . . . . . . . 17 ⊢ (𝑦 ∈ ℕ → (𝑦 + 1) ∈ ℕ₀)
60		0elfz 13569	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑦 + 1) ∈ ℕ₀ → 0 ∈ (0...(𝑦 + 1)))
61	59, 60	syl 17	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 ∈ ℕ → 0 ∈ (0...(𝑦 + 1)))
62	61	adantr 480	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → 0 ∈ (0...(𝑦 + 1)))
63	57, 58, 62	iccpartxr 47891	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑝‘0) ∈ ℝ^*)
64		nn0fz0 13570	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑦 + 1) ∈ ℕ₀ ↔ (𝑦 + 1) ∈ (0...(𝑦 + 1)))
65	59, 64	sylib 218	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 ∈ ℕ → (𝑦 + 1) ∈ (0...(𝑦 + 1)))
66	65	adantr 480	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑦 + 1) ∈ (0...(𝑦 + 1)))
67	57, 58, 66	iccpartxr 47891	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑝‘(𝑦 + 1)) ∈ ℝ^*)
68	63, 67	jca 511	. . . . . . . . . . . . 13 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑝‘0) ∈ ℝ^* ∧ (𝑝‘(𝑦 + 1)) ∈ ℝ^*))
69	68	adantlr 716	. . . . . . . . . . . 12 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑝‘0) ∈ ℝ^* ∧ (𝑝‘(𝑦 + 1)) ∈ ℝ^*))
70		elico1 13332	. . . . . . . . . . . 12 ⊢ (((𝑝‘0) ∈ ℝ^* ∧ (𝑝‘(𝑦 + 1)) ∈ ℝ^) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) ↔ (𝑋 ∈ ℝ^ ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
71	69, 70	syl 17	. . . . . . . . . . 11 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) ↔ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
72		simp1 1137	. . . . . . . . . . . . . . . 16 ⊢ ((𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))) → 𝑋 ∈ ℝ^*)
73	72	adantl 481	. . . . . . . . . . . . . . 15 ⊢ (((𝑝‘𝑦) ≤ 𝑋 ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → 𝑋 ∈ ℝ^*)
74		simpl 482	. . . . . . . . . . . . . . 15 ⊢ (((𝑝‘𝑦) ≤ 𝑋 ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → (𝑝‘𝑦) ≤ 𝑋)
75		simpr3 1198	. . . . . . . . . . . . . . 15 ⊢ (((𝑝‘𝑦) ≤ 𝑋 ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → 𝑋 < (𝑝‘(𝑦 + 1)))
76	73, 74, 75	3jca 1129	. . . . . . . . . . . . . 14 ⊢ (((𝑝‘𝑦) ≤ 𝑋 ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → (𝑋 ∈ ℝ^* ∧ (𝑝‘𝑦) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))))
77	76	ex 412	. . . . . . . . . . . . 13 ⊢ ((𝑝‘𝑦) ≤ 𝑋 → ((𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))) → (𝑋 ∈ ℝ^* ∧ (𝑝‘𝑦) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
78	77	adantl 481	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) → ((𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))) → (𝑋 ∈ ℝ^* ∧ (𝑝‘𝑦) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
79	78	adantr 480	. . . . . . . . . . 11 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))) → (𝑋 ∈ ℝ^* ∧ (𝑝‘𝑦) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
80	71, 79	sylbid 240	. . . . . . . . . 10 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → (𝑋 ∈ ℝ^* ∧ (𝑝‘𝑦) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
81	80	impr 454	. . . . . . . . 9 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑝 ∈ (RePart‘(𝑦 + 1)) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))))) → (𝑋 ∈ ℝ^* ∧ (𝑝‘𝑦) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))))
82		nn0fz0 13570	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 ∈ ℕ₀ ↔ 𝑦 ∈ (0...𝑦))
83	47, 82	sylib 218	. . . . . . . . . . . . . . 15 ⊢ (𝑦 ∈ ℕ → 𝑦 ∈ (0...𝑦))
84		fzelp1 13521	. . . . . . . . . . . . . . 15 ⊢ (𝑦 ∈ (0...𝑦) → 𝑦 ∈ (0...(𝑦 + 1)))
85	83, 84	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝑦 ∈ ℕ → 𝑦 ∈ (0...(𝑦 + 1)))
86	85	adantr 480	. . . . . . . . . . . . 13 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → 𝑦 ∈ (0...(𝑦 + 1)))
87	57, 58, 86	iccpartxr 47891	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑝‘𝑦) ∈ ℝ^*)
88	87, 67	jca 511	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑝‘𝑦) ∈ ℝ^* ∧ (𝑝‘(𝑦 + 1)) ∈ ℝ^*))
89	88	ad2ant2r 748	. . . . . . . . . 10 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑝 ∈ (RePart‘(𝑦 + 1)) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))))) → ((𝑝‘𝑦) ∈ ℝ^* ∧ (𝑝‘(𝑦 + 1)) ∈ ℝ^*))
90		elico1 13332	. . . . . . . . . 10 ⊢ (((𝑝‘𝑦) ∈ ℝ^* ∧ (𝑝‘(𝑦 + 1)) ∈ ℝ^) → (𝑋 ∈ ((𝑝‘𝑦)[,)(𝑝‘(𝑦 + 1))) ↔ (𝑋 ∈ ℝ^ ∧ (𝑝‘𝑦) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
91	89, 90	syl 17	. . . . . . . . 9 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑝 ∈ (RePart‘(𝑦 + 1)) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))))) → (𝑋 ∈ ((𝑝‘𝑦)[,)(𝑝‘(𝑦 + 1))) ↔ (𝑋 ∈ ℝ^* ∧ (𝑝‘𝑦) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
92	81, 91	mpbird 257	. . . . . . . 8 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑝 ∈ (RePart‘(𝑦 + 1)) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))))) → 𝑋 ∈ ((𝑝‘𝑦)[,)(𝑝‘(𝑦 + 1))))
93	50, 55, 92	rspcedvd 3567	. . . . . . 7 ⊢ (((𝑦 ∈ ℕ ∧ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑝 ∈ (RePart‘(𝑦 + 1)) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))
94	93	exp43 436	. . . . . 6 ⊢ (𝑦 ∈ ℕ → ((𝑝‘𝑦) ≤ 𝑋 → (𝑝 ∈ (RePart‘(𝑦 + 1)) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
95	94	adantr 480	. . . . 5 ⊢ ((𝑦 ∈ ℕ ∧ ∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))) → ((𝑝‘𝑦) ≤ 𝑋 → (𝑝 ∈ (RePart‘(𝑦 + 1)) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
96		iccpartres 47890	. . . . . . . . 9 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑝 ↾ (0...𝑦)) ∈ (RePart‘𝑦))
97		rspsbca 3819	. . . . . . . . . . . 12 ⊢ (((𝑝 ↾ (0...𝑦)) ∈ (RePart‘𝑦) ∧ ∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))) → [(𝑝 ↾ (0...𝑦)) / 𝑝](𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
98		vex 3434	. . . . . . . . . . . . . . 15 ⊢ 𝑝 ∈ V
99	98	resex 5988	. . . . . . . . . . . . . 14 ⊢ (𝑝 ↾ (0...𝑦)) ∈ V
100		sbcimg 3778	. . . . . . . . . . . . . . 15 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ([(𝑝 ↾ (0...𝑦)) / 𝑝](𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ ([(𝑝 ↾ (0...𝑦)) / 𝑝]𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → [(𝑝 ↾ (0...𝑦)) / 𝑝]∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
101		sbcel2 4359	. . . . . . . . . . . . . . . . 17 ⊢ ([(𝑝 ↾ (0...𝑦)) / 𝑝]𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) ↔ 𝑋 ∈ ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌((𝑝‘0)[,)(𝑝‘𝑦)))
102		csbov12g 7406	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌((𝑝‘0)[,)(𝑝‘𝑦)) = (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘0)[,)⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘𝑦)))
103		csbfv12 6879	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘0) = (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝‘⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌0)
104		csbvarg 4375	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝 = (𝑝 ↾ (0...𝑦)))
105		csbconstg 3857	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌0 = 0)
106	104, 105	fveq12d 6841	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝‘⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌0) = ((𝑝 ↾ (0...𝑦))‘0))
107	103, 106	eqtrid 2784	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘0) = ((𝑝 ↾ (0...𝑦))‘0))
108		csbfv12 6879	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘𝑦) = (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝‘⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑦)
109		csbconstg 3857	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑦 = 𝑦)
110	104, 109	fveq12d 6841	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝‘⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑦) = ((𝑝 ↾ (0...𝑦))‘𝑦))
111	108, 110	eqtrid 2784	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘𝑦) = ((𝑝 ↾ (0...𝑦))‘𝑦))
112	107, 111	oveq12d 7378	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘0)[,)⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘𝑦)) = (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)))
113	102, 112	eqtrd 2772	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌((𝑝‘0)[,)(𝑝‘𝑦)) = (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)))
114	113	eleq2d 2823	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (𝑋 ∈ ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌((𝑝‘0)[,)(𝑝‘𝑦)) ↔ 𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦))))
115	101, 114	bitrid 283	. . . . . . . . . . . . . . . 16 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ([(𝑝 ↾ (0...𝑦)) / 𝑝]𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) ↔ 𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦))))
116		sbcrex 3814	. . . . . . . . . . . . . . . . 17 ⊢ ([(𝑝 ↾ (0...𝑦)) / 𝑝]∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ ∃𝑖 ∈ (0..^𝑦)[(𝑝 ↾ (0...𝑦)) / 𝑝]𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))
117		sbcel2 4359	. . . . . . . . . . . . . . . . . . 19 ⊢ ([(𝑝 ↾ (0...𝑦)) / 𝑝]𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ 𝑋 ∈ ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))
118		csbov12g 7406	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) = (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘𝑖)[,)⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘(𝑖 + 1))))
119		csbfv12 6879	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘𝑖) = (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝‘⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑖)
120		csbconstg 3857	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑖 = 𝑖)
121	104, 120	fveq12d 6841	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝‘⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑖) = ((𝑝 ↾ (0...𝑦))‘𝑖))
122	119, 121	eqtrid 2784	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘𝑖) = ((𝑝 ↾ (0...𝑦))‘𝑖))
123		csbfv12 6879	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘(𝑖 + 1)) = (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝‘⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑖 + 1))
124		csbconstg 3857	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑖 + 1) = (𝑖 + 1))
125	104, 124	fveq12d 6841	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌𝑝‘⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑖 + 1)) = ((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))
126	123, 125	eqtrid 2784	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘(𝑖 + 1)) = ((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))
127	122, 126	oveq12d 7378	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘𝑖)[,)⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌(𝑝‘(𝑖 + 1))) = (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1))))
128	118, 127	eqtrd 2772	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) = (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1))))
129	128	eleq2d 2823	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (𝑋 ∈ ⦋(𝑝 ↾ (0...𝑦)) / 𝑝⦌((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ 𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))))
130	117, 129	bitrid 283	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ([(𝑝 ↾ (0...𝑦)) / 𝑝]𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ 𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))))
131	130	rexbidv 3162	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (∃𝑖 ∈ (0..^𝑦)[(𝑝 ↾ (0...𝑦)) / 𝑝]𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))))
132	116, 131	bitrid 283	. . . . . . . . . . . . . . . 16 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ([(𝑝 ↾ (0...𝑦)) / 𝑝]∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) ↔ ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))))
133	115, 132	imbi12d 344	. . . . . . . . . . . . . . 15 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → (([(𝑝 ↾ (0...𝑦)) / 𝑝]𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → [(𝑝 ↾ (0...𝑦)) / 𝑝]∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ (𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1))))))
134	100, 133	bitrd 279	. . . . . . . . . . . . . 14 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ V → ([(𝑝 ↾ (0...𝑦)) / 𝑝](𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ (𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1))))))
135	99, 134	ax-mp 5	. . . . . . . . . . . . 13 ⊢ ([(𝑝 ↾ (0...𝑦)) / 𝑝](𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) ↔ (𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))))
136	68, 70	syl 17	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) ↔ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
137	136	adantr 480	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) ↔ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))))
138	72	adantl 481	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → 𝑋 ∈ ℝ^*)
139		simpr2 1197	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → (𝑝‘0) ≤ 𝑋)
140		xrltnle 11203	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑋 ∈ ℝ^* ∧ (𝑝‘𝑦) ∈ ℝ^*) → (𝑋 < (𝑝‘𝑦) ↔ ¬ (𝑝‘𝑦) ≤ 𝑋))
141	72, 87, 140	syl2anr 598	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → (𝑋 < (𝑝‘𝑦) ↔ ¬ (𝑝‘𝑦) ≤ 𝑋))
142	141	exbiri 811	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → 𝑋 < (𝑝‘𝑦))))
143	142	com23 86	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → ((𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))) → 𝑋 < (𝑝‘𝑦))))
144	143	imp31 417	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → 𝑋 < (𝑝‘𝑦))
145	138, 139, 144	3jca 1129	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘𝑦)))
146	63, 87	jca 511	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑝‘0) ∈ ℝ^* ∧ (𝑝‘𝑦) ∈ ℝ^*))
147	146	ad2antrr 727	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → ((𝑝‘0) ∈ ℝ^* ∧ (𝑝‘𝑦) ∈ ℝ^*))
148		elico1 13332	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑝‘0) ∈ ℝ^* ∧ (𝑝‘𝑦) ∈ ℝ^) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) ↔ (𝑋 ∈ ℝ^ ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘𝑦))))
149	147, 148	syl 17	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) ↔ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘𝑦))))
150	145, 149	mpbird 257	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) ∧ (𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1)))) → 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)))
151	150	ex 412	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) → ((𝑋 ∈ ℝ^* ∧ (𝑝‘0) ≤ 𝑋 ∧ 𝑋 < (𝑝‘(𝑦 + 1))) → 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))))
152	137, 151	sylbid 240	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))))
153		0elfz 13569	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝑦 ∈ ℕ₀ → 0 ∈ (0...𝑦))
154	47, 153	syl 17	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝑦 ∈ ℕ → 0 ∈ (0...𝑦))
155	154	adantr 480	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → 0 ∈ (0...𝑦))
156		fvres 6853	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (0 ∈ (0...𝑦) → ((𝑝 ↾ (0...𝑦))‘0) = (𝑝‘0))
157	155, 156	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑝 ↾ (0...𝑦))‘0) = (𝑝‘0))
158	157	eqcomd 2743	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑝‘0) = ((𝑝 ↾ (0...𝑦))‘0))
159	83	adantr 480	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → 𝑦 ∈ (0...𝑦))
160		fvres 6853	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑦 ∈ (0...𝑦) → ((𝑝 ↾ (0...𝑦))‘𝑦) = (𝑝‘𝑦))
161	159, 160	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑝 ↾ (0...𝑦))‘𝑦) = (𝑝‘𝑦))
162	161	eqcomd 2743	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑝‘𝑦) = ((𝑝 ↾ (0...𝑦))‘𝑦))
163	158, 162	oveq12d 7378	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → ((𝑝‘0)[,)(𝑝‘𝑦)) = (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)))
164	163	eleq2d 2823	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) ↔ 𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦))))
165	164	biimpa 476	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) → 𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)))
166		elfzofz 13621	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝑖 ∈ (0..^𝑦) → 𝑖 ∈ (0...𝑦))
167	166	adantl 481	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) ∧ 𝑖 ∈ (0..^𝑦)) → 𝑖 ∈ (0...𝑦))
168		fvres 6853	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑖 ∈ (0...𝑦) → ((𝑝 ↾ (0...𝑦))‘𝑖) = (𝑝‘𝑖))
169	167, 168	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) ∧ 𝑖 ∈ (0..^𝑦)) → ((𝑝 ↾ (0...𝑦))‘𝑖) = (𝑝‘𝑖))
170		fzofzp1 13710	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝑖 ∈ (0..^𝑦) → (𝑖 + 1) ∈ (0...𝑦))
171	170	adantl 481	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑖 ∈ (0..^𝑦)) → (𝑖 + 1) ∈ (0...𝑦))
172		fvres 6853	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑖 + 1) ∈ (0...𝑦) → ((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)) = (𝑝‘(𝑖 + 1)))
173	171, 172	syl 17	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑖 ∈ (0..^𝑦)) → ((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)) = (𝑝‘(𝑖 + 1)))
174	173	adantlr 716	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) ∧ 𝑖 ∈ (0..^𝑦)) → ((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)) = (𝑝‘(𝑖 + 1)))
175	169, 174	oveq12d 7378	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) ∧ 𝑖 ∈ (0..^𝑦)) → (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1))) = ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))
176	175	eleq2d 2823	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) ∧ 𝑖 ∈ (0..^𝑦)) → (𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1))) ↔ 𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
177	176	rexbidva 3160	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) → (∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1))) ↔ ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
178		nnz 12536	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝑦 ∈ ℕ → 𝑦 ∈ ℤ)
179		uzid 12794	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝑦 ∈ ℤ → 𝑦 ∈ (ℤ_≥‘𝑦))
180		peano2uz 12842	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝑦 ∈ (ℤ_≥‘𝑦) → (𝑦 + 1) ∈ (ℤ_≥‘𝑦))
181		fzoss2 13633	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑦 + 1) ∈ (ℤ_≥‘𝑦) → (0..^𝑦) ⊆ (0..^(𝑦 + 1)))
182	178, 179, 180, 181	4syl 19	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑦 ∈ ℕ → (0..^𝑦) ⊆ (0..^(𝑦 + 1)))
183	182	ad2antrr 727	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) → (0..^𝑦) ⊆ (0..^(𝑦 + 1)))
184		ssrexv 3992	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((0..^𝑦) ⊆ (0..^(𝑦 + 1)) → (∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
185	183, 184	syl 17	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) → (∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
186	177, 185	sylbid 240	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) → (∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
187	165, 186	embantd 59	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ 𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦))) → ((𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
188	187	ex 412	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ((𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
189	188	adantr 480	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ((𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
190	152, 189	syld 47	. . . . . . . . . . . . . . . 16 ⊢ (((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) ∧ ¬ (𝑝‘𝑦) ≤ 𝑋) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ((𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
191	190	ex 412	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ((𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
192	191	com34 91	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → ((𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
193	192	com13 88	. . . . . . . . . . . . 13 ⊢ ((𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘0)[,)((𝑝 ↾ (0...𝑦))‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ (((𝑝 ↾ (0...𝑦))‘𝑖)[,)((𝑝 ↾ (0...𝑦))‘(𝑖 + 1)))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
194	135, 193	sylbi 217	. . . . . . . . . . . 12 ⊢ ([(𝑝 ↾ (0...𝑦)) / 𝑝](𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
195	97, 194	syl 17	. . . . . . . . . . 11 ⊢ (((𝑝 ↾ (0...𝑦)) ∈ (RePart‘𝑦) ∧ ∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
196	195	ex 412	. . . . . . . . . 10 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ (RePart‘𝑦) → (∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))))
197	196	com24 95	. . . . . . . . 9 ⊢ ((𝑝 ↾ (0...𝑦)) ∈ (RePart‘𝑦) → ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → (∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))))
198	96, 197	mpcom 38	. . . . . . . 8 ⊢ ((𝑦 ∈ ℕ ∧ 𝑝 ∈ (RePart‘(𝑦 + 1))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → (∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
199	198	ex 412	. . . . . . 7 ⊢ (𝑦 ∈ ℕ → (𝑝 ∈ (RePart‘(𝑦 + 1)) → (¬ (𝑝‘𝑦) ≤ 𝑋 → (∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))))
200	199	com24 95	. . . . . 6 ⊢ (𝑦 ∈ ℕ → (∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → (𝑝 ∈ (RePart‘(𝑦 + 1)) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))))
201	200	imp 406	. . . . 5 ⊢ ((𝑦 ∈ ℕ ∧ ∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))) → (¬ (𝑝‘𝑦) ≤ 𝑋 → (𝑝 ∈ (RePart‘(𝑦 + 1)) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))))
202	95, 201	pm2.61d 179	. . . 4 ⊢ ((𝑦 ∈ ℕ ∧ ∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))) → (𝑝 ∈ (RePart‘(𝑦 + 1)) → (𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
203	46, 202	ralrimi 3236	. . 3 ⊢ ((𝑦 ∈ ℕ ∧ ∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))) → ∀𝑝 ∈ (RePart‘(𝑦 + 1))(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))
204	203	ex 412	. 2 ⊢ (𝑦 ∈ ℕ → (∀𝑝 ∈ (RePart‘𝑦)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑦)) → ∃𝑖 ∈ (0..^𝑦)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))) → ∀𝑝 ∈ (RePart‘(𝑦 + 1))(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘(𝑦 + 1))) → ∃𝑖 ∈ (0..^(𝑦 + 1))𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1))))))
205	10, 18, 26, 34, 43, 204	nnind 12183	1 ⊢ (𝑀 ∈ ℕ → ∀𝑝 ∈ (RePart‘𝑀)(𝑋 ∈ ((𝑝‘0)[,)(𝑝‘𝑀)) → ∃𝑖 ∈ (0..^𝑀)𝑋 ∈ ((𝑝‘𝑖)[,)(𝑝‘(𝑖 + 1)))))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ∃wrex 3062 Vcvv 3430 [wsbc 3729 ⦋csb 3838 ⊆ wss 3890 {csn 4568 class class class wbr 5086 ↾ cres 5626 ‘cfv 6492 (class class class)co 7360 0cc0 11029 1c1 11030 + caddc 11032 ℝ^*cxr 11169 < clt 11170 ≤ cle 11171 ℕcn 12165 ℕ₀cn0 12428 ℤcz 12515 ℤ_≥cuz 12779 [,)cico 13291 ...cfz 13452 ..^cfzo 13599 RePartciccp 47885

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-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106

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-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-er 8636 df-map 8768 df-en 8887 df-dom 8888 df-sdom 8889 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12166 df-n0 12429 df-z 12516 df-uz 12780 df-ico 13295 df-fz 13453 df-fzo 13600 df-iccp 47886

This theorem is referenced by: iccpartiun 47906 icceuelpart 47908 bgoldbtbnd 48297

W3C validator