hoiqssbllem3 - Mathbox for Glauco Siliprandi

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Theorem hoiqssbllem3 47779

Description: A n-dimensional ball contains a nonempty half-open interval with vertices with rational components. (Contributed by Glauco Siliprandi, 24-Dec-2020.)

**Hypotheses**
Ref	Expression
hoiqssbllem3.x	⊢ (𝜑 → 𝑋 ∈ Fin)
hoiqssbllem3.n	⊢ (𝜑 → 𝑋 ≠ ∅)
hoiqssbllem3.y	⊢ (𝜑 → 𝑌 ∈ (ℝ ↑_m 𝑋))
hoiqssbllem3.e	⊢ (𝜑 → 𝐸 ∈ ℝ⁺)

**Assertion**
Ref	Expression
hoiqssbllem3	⊢ (𝜑 → ∃𝑐 ∈ (ℚ ↑_m 𝑋)∃𝑑 ∈ (ℚ ↑_m 𝑋)(𝑌 ∈ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ∧ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ⊆ (𝑌(ball‘(dist‘(ℝ^‘𝑋)))𝐸)))

Distinct variable groups: 𝐸,𝑐,𝑑,𝑖 𝑋,𝑐,𝑑,𝑖 𝑌,𝑐,𝑑,𝑖 𝜑,𝑐,𝑑,𝑖

Proof of Theorem hoiqssbllem3 Dummy variable 𝑘 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		hoiqssbllem3.x	. . . . . . 7 ⊢ (𝜑 → 𝑋 ∈ Fin)
2		qex 13101	. . . . . . . . 9 ⊢ ℚ ∈ V
3	2	inex1 5281	. . . . . . . 8 ⊢ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∈ V
4	3	a1i 11	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∈ V)
5		hoiqssbllem3.y	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑌 ∈ (ℝ ↑_m 𝑋))
6		elmapi 8883	. . . . . . . . . . . . 13 ⊢ (𝑌 ∈ (ℝ ↑_m 𝑋) → 𝑌:𝑋⟶ℝ)
7	5, 6	syl 18	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑌:𝑋⟶ℝ)
8	7	ffvelcdmda 7095	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (𝑌‘𝑖) ∈ ℝ)
9		hoiqssbllem3.e	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐸 ∈ ℝ⁺)
10		2rp 13138	. . . . . . . . . . . . . . 15 ⊢ 2 ∈ ℝ⁺
11	10	a1i 11	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 2 ∈ ℝ⁺)
12		hoiqssbllem3.n	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → 𝑋 ≠ ∅)
13		hashnncl 14523	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑋 ∈ Fin → ((♯‘𝑋) ∈ ℕ ↔ 𝑋 ≠ ∅))
14	1, 13	syl 18	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → ((♯‘𝑋) ∈ ℕ ↔ 𝑋 ≠ ∅))
15	12, 14	mpbird 260	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (♯‘𝑋) ∈ ℕ)
16		nnrp 13145	. . . . . . . . . . . . . . . 16 ⊢ ((♯‘𝑋) ∈ ℕ → (♯‘𝑋) ∈ ℝ⁺)
17	15, 16	syl 18	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (♯‘𝑋) ∈ ℝ⁺)
18	17	rpsqrtcld 15594	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (√‘(♯‘𝑋)) ∈ ℝ⁺)
19	11, 18	rpmulcld 13193	. . . . . . . . . . . . 13 ⊢ (𝜑 → (2 · (√‘(♯‘𝑋))) ∈ ℝ⁺)
20	9, 19	rpdivcld 13194	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝐸 / (2 · (√‘(♯‘𝑋)))) ∈ ℝ⁺)
21	20	adantr 486	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (𝐸 / (2 · (√‘(♯‘𝑋)))) ∈ ℝ⁺)
22	8, 21	ltsubrpd 13209	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋))))) < (𝑌‘𝑖))
23	21	rpred 13177	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (𝐸 / (2 · (√‘(♯‘𝑋)))) ∈ ℝ)
24	8, 23	resubcld 11757	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋))))) ∈ ℝ)
25	24, 8	ltnled 11470	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋))))) < (𝑌‘𝑖) ↔ ¬ (𝑌‘𝑖) ≤ ((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))))
26	22, 25	mpbid 235	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ¬ (𝑌‘𝑖) ≤ ((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋))))))
27	24	rexrd 11372	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋))))) ∈ ℝ^*)
28	8	rexrd 11372	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (𝑌‘𝑖) ∈ ℝ^*)
29	27, 28	qinioo 46692	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ((ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) = ∅ ↔ (𝑌‘𝑖) ≤ ((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))))
30	26, 29	mtbird 328	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ¬ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) = ∅)
31	30	neqned 2966	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ≠ ∅)
32	1, 4, 31	choicefi 46359	. . . . . 6 ⊢ (𝜑 → ∃𝑐(𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))))
33		simpl 488	. . . . . . . . . . . . 13 ⊢ ((𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))) → 𝑐 Fn 𝑋)
34		nfra1 3290	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑖∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))
35		rspa 3255	. . . . . . . . . . . . . . . . 17 ⊢ ((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ 𝑖 ∈ 𝑋) → (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))
36		elinel1 4101	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) → (𝑐‘𝑖) ∈ ℚ)
37	35, 36	syl 18	. . . . . . . . . . . . . . . 16 ⊢ ((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ 𝑖 ∈ 𝑋) → (𝑐‘𝑖) ∈ ℚ)
38	37	ex 418	. . . . . . . . . . . . . . 15 ⊢ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) → (𝑖 ∈ 𝑋 → (𝑐‘𝑖) ∈ ℚ))
39	34, 38	ralrimi 3264	. . . . . . . . . . . . . 14 ⊢ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) → ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ ℚ)
40	39	adantl 487	. . . . . . . . . . . . 13 ⊢ ((𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))) → ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ ℚ)
41	33, 40	jca 521	. . . . . . . . . . . 12 ⊢ ((𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))) → (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ ℚ))
42	41	adantl 487	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))) → (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ ℚ))
43		ffnfv 7130	. . . . . . . . . . 11 ⊢ (𝑐:𝑋⟶ℚ ↔ (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ ℚ))
44	42, 43	sylibr 237	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))) → 𝑐:𝑋⟶ℚ)
45	2	a1i 11	. . . . . . . . . . . 12 ⊢ (𝜑 → ℚ ∈ V)
46		elmapg 8873	. . . . . . . . . . . 12 ⊢ ((ℚ ∈ V ∧ 𝑋 ∈ Fin) → (𝑐 ∈ (ℚ ↑_m 𝑋) ↔ 𝑐:𝑋⟶ℚ))
47	45, 1, 46	syl2anc 596	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑐 ∈ (ℚ ↑_m 𝑋) ↔ 𝑐:𝑋⟶ℚ))
48	47	adantr 486	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))) → (𝑐 ∈ (ℚ ↑_m 𝑋) ↔ 𝑐:𝑋⟶ℚ))
49	44, 48	mpbird 260	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))) → 𝑐 ∈ (ℚ ↑_m 𝑋))
50		simprr 785	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))) → ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))
51	49, 50	jca 521	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))) → (𝑐 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))))
52	51	ex 418	. . . . . . 7 ⊢ (𝜑 → ((𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))) → (𝑐 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))))
53	52	eximdv 1951	. . . . . 6 ⊢ (𝜑 → (∃𝑐(𝑐 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))) → ∃𝑐(𝑐 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))))
54	32, 53	mpd 16	. . . . 5 ⊢ (𝜑 → ∃𝑐(𝑐 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))))
55		df-rex 3091	. . . . 5 ⊢ (∃𝑐 ∈ (ℚ ↑_m 𝑋)∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ↔ ∃𝑐(𝑐 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))))
56	54, 55	sylibr 237	. . . 4 ⊢ (𝜑 → ∃𝑐 ∈ (ℚ ↑_m 𝑋)∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))))
57	2	inex1 5281	. . . . . . . 8 ⊢ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ∈ V
58	57	a1i 11	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ∈ V)
59	8, 21	ltaddrpd 13210	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (𝑌‘𝑖) < ((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))
60	8, 23	readdcld 11351	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))) ∈ ℝ)
61	8, 60	ltnled 11470	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ((𝑌‘𝑖) < ((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))) ↔ ¬ ((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))) ≤ (𝑌‘𝑖)))
62	59, 61	mpbid 235	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ¬ ((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))) ≤ (𝑌‘𝑖))
63	60	rexrd 11372	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))) ∈ ℝ^*)
64	28, 63	qinioo 46692	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ((ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) = ∅ ↔ ((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))) ≤ (𝑌‘𝑖)))
65	62, 64	mtbird 328	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → ¬ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) = ∅)
66	65	neqned 2966	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ 𝑋) → (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ≠ ∅)
67	1, 58, 66	choicefi 46359	. . . . . 6 ⊢ (𝜑 → ∃𝑑(𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
68		simpl 488	. . . . . . . . . . . . 13 ⊢ ((𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → 𝑑 Fn 𝑋)
69		nfra1 3290	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑖∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))
70		rspa 3255	. . . . . . . . . . . . . . . . 17 ⊢ ((∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ∧ 𝑖 ∈ 𝑋) → (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))
71		elinel1 4101	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) → (𝑑‘𝑖) ∈ ℚ)
72	70, 71	syl 18	. . . . . . . . . . . . . . . 16 ⊢ ((∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ∧ 𝑖 ∈ 𝑋) → (𝑑‘𝑖) ∈ ℚ)
73	72	ex 418	. . . . . . . . . . . . . . 15 ⊢ (∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) → (𝑖 ∈ 𝑋 → (𝑑‘𝑖) ∈ ℚ))
74	69, 73	ralrimi 3264	. . . . . . . . . . . . . 14 ⊢ (∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) → ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ ℚ)
75	74	adantl 487	. . . . . . . . . . . . 13 ⊢ ((𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ ℚ)
76	68, 75	jca 521	. . . . . . . . . . . 12 ⊢ ((𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ ℚ))
77	76	adantl 487	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ ℚ))
78		ffnfv 7130	. . . . . . . . . . 11 ⊢ (𝑑:𝑋⟶ℚ ↔ (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ ℚ))
79	77, 78	sylibr 237	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑑:𝑋⟶ℚ)
80		elmapg 8873	. . . . . . . . . . . 12 ⊢ ((ℚ ∈ V ∧ 𝑋 ∈ Fin) → (𝑑 ∈ (ℚ ↑_m 𝑋) ↔ 𝑑:𝑋⟶ℚ))
81	45, 1, 80	syl2anc 596	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑑 ∈ (ℚ ↑_m 𝑋) ↔ 𝑑:𝑋⟶ℚ))
82	81	adantr 486	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → (𝑑 ∈ (ℚ ↑_m 𝑋) ↔ 𝑑:𝑋⟶ℚ))
83	79, 82	mpbird 260	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑑 ∈ (ℚ ↑_m 𝑋))
84		simprr 785	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))
85	83, 84	jca 521	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → (𝑑 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
86	85	ex 418	. . . . . . 7 ⊢ (𝜑 → ((𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → (𝑑 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))))
87	86	eximdv 1951	. . . . . 6 ⊢ (𝜑 → (∃𝑑(𝑑 Fn 𝑋 ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → ∃𝑑(𝑑 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))))
88	67, 87	mpd 16	. . . . 5 ⊢ (𝜑 → ∃𝑑(𝑑 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
89		df-rex 3091	. . . . 5 ⊢ (∃𝑑 ∈ (ℚ ↑_m 𝑋)∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ↔ ∃𝑑(𝑑 ∈ (ℚ ↑_m 𝑋) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
90	88, 89	sylibr 237	. . . 4 ⊢ (𝜑 → ∃𝑑 ∈ (ℚ ↑_m 𝑋)∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))
91	56, 90	jca 521	. . 3 ⊢ (𝜑 → (∃𝑐 ∈ (ℚ ↑_m 𝑋)∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∃𝑑 ∈ (ℚ ↑_m 𝑋)∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
92		reeanv 3238	. . 3 ⊢ (∃𝑐 ∈ (ℚ ↑_m 𝑋)∃𝑑 ∈ (ℚ ↑_m 𝑋)(∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) ↔ (∃𝑐 ∈ (ℚ ↑_m 𝑋)∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∃𝑑 ∈ (ℚ ↑_m 𝑋)∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
93	91, 92	sylibr 237	. 2 ⊢ (𝜑 → ∃𝑐 ∈ (ℚ ↑_m 𝑋)∃𝑑 ∈ (ℚ ↑_m 𝑋)(∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
94		nfv 1948	. . . . . . . 8 ⊢ Ⅎ𝑖((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋))
95	34, 69	nfan 1933	. . . . . . . 8 ⊢ Ⅎ𝑖(∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))
96	94, 95	nfan 1933	. . . . . . 7 ⊢ Ⅎ𝑖(((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
97	1	ad3antrrr 743	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑋 ∈ Fin)
98	12	ad3antrrr 743	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑋 ≠ ∅)
99	5	ad3antrrr 743	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑌 ∈ (ℝ ↑_m 𝑋))
100		elmapi 8883	. . . . . . . . . 10 ⊢ (𝑐 ∈ (ℚ ↑_m 𝑋) → 𝑐:𝑋⟶ℚ)
101		qssre 13099	. . . . . . . . . . 11 ⊢ ℚ ⊆ ℝ
102	101	a1i 11	. . . . . . . . . 10 ⊢ (𝑐 ∈ (ℚ ↑_m 𝑋) → ℚ ⊆ ℝ)
103	100, 102	fssd 6738	. . . . . . . . 9 ⊢ (𝑐 ∈ (ℚ ↑_m 𝑋) → 𝑐:𝑋⟶ℝ)
104	103	adantl 487	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) → 𝑐:𝑋⟶ℝ)
105	104	ad2antrr 739	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑐:𝑋⟶ℝ)
106		elmapi 8883	. . . . . . . . 9 ⊢ (𝑑 ∈ (ℚ ↑_m 𝑋) → 𝑑:𝑋⟶ℚ)
107	101	a1i 11	. . . . . . . . 9 ⊢ (𝑑 ∈ (ℚ ↑_m 𝑋) → ℚ ⊆ ℝ)
108	106, 107	fssd 6738	. . . . . . . 8 ⊢ (𝑑 ∈ (ℚ ↑_m 𝑋) → 𝑑:𝑋⟶ℝ)
109	108	ad2antlr 740	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑑:𝑋⟶ℝ)
110	9	ad3antrrr 743	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝐸 ∈ ℝ⁺)
111	35	elin2d 4105	. . . . . . . . 9 ⊢ ((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ 𝑖 ∈ 𝑋) → (𝑐‘𝑖) ∈ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))
112	111	adantlr 728	. . . . . . . 8 ⊢ (((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) ∧ 𝑖 ∈ 𝑋) → (𝑐‘𝑖) ∈ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))
113	112	adantll 727	. . . . . . 7 ⊢ (((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) ∧ 𝑖 ∈ 𝑋) → (𝑐‘𝑖) ∈ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))
114	70	elin2d 4105	. . . . . . . . 9 ⊢ ((∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ∧ 𝑖 ∈ 𝑋) → (𝑑‘𝑖) ∈ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))
115	114	adantll 727	. . . . . . . 8 ⊢ (((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) ∧ 𝑖 ∈ 𝑋) → (𝑑‘𝑖) ∈ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))
116	115	adantll 727	. . . . . . 7 ⊢ (((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) ∧ 𝑖 ∈ 𝑋) → (𝑑‘𝑖) ∈ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))
117	96, 97, 98, 99, 105, 109, 110, 113, 116	hoiqssbllem1 47777	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑌 ∈ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)))
118		simpl 488	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → ((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)))
119		fveq2 6896	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝑘 → (𝑐‘𝑖) = (𝑐‘𝑘))
120		fveq2 6896	. . . . . . . . . . . . . . . 16 ⊢ (𝑖 = 𝑘 → (𝑌‘𝑖) = (𝑌‘𝑘))
121	120	oveq1d 7445	. . . . . . . . . . . . . . 15 ⊢ (𝑖 = 𝑘 → ((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋))))) = ((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋))))))
122	121, 120	oveq12d 7448	. . . . . . . . . . . . . 14 ⊢ (𝑖 = 𝑘 → (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)) = (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘)))
123	122	ineq2d 4120	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝑘 → (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) = (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))))
124	119, 123	eleq12d 2858	. . . . . . . . . . . 12 ⊢ (𝑖 = 𝑘 → ((𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ↔ (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘)))))
125	124	cbvralvw 3244	. . . . . . . . . . 11 ⊢ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ↔ ∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))))
126	125	biimpi 219	. . . . . . . . . 10 ⊢ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) → ∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))))
127	126	adantr 486	. . . . . . . . 9 ⊢ ((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → ∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))))
128		fveq2 6896	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝑘 → (𝑑‘𝑖) = (𝑑‘𝑘))
129	120	oveq1d 7445	. . . . . . . . . . . . . . 15 ⊢ (𝑖 = 𝑘 → ((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))) = ((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))
130	120, 129	oveq12d 7448	. . . . . . . . . . . . . 14 ⊢ (𝑖 = 𝑘 → ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))) = ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))
131	130	ineq2d 4120	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝑘 → (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) = (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))
132	128, 131	eleq12d 2858	. . . . . . . . . . . 12 ⊢ (𝑖 = 𝑘 → ((𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ↔ (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
133	132	cbvralvw 3244	. . . . . . . . . . 11 ⊢ (∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ↔ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))
134	133	biimpi 219	. . . . . . . . . 10 ⊢ (∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) → ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))
135	134	adantl 487	. . . . . . . . 9 ⊢ ((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))
136	127, 135	jca 521	. . . . . . . 8 ⊢ ((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
137	136	adantl 487	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
138		nfv 1948	. . . . . . . 8 ⊢ Ⅎ𝑖(((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))))
139	1	ad3antrrr 743	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑋 ∈ Fin)
140	12	ad3antrrr 743	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑋 ≠ ∅)
141	5	ad3antrrr 743	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑌 ∈ (ℝ ↑_m 𝑋))
142	104	ad2antrr 739	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑐:𝑋⟶ℝ)
143	108	ad2antlr 740	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝑑:𝑋⟶ℝ)
144	9	ad3antrrr 743	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → 𝐸 ∈ ℝ⁺)
145	125, 111	sylanbr 594	. . . . . . . . . 10 ⊢ ((∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ 𝑖 ∈ 𝑋) → (𝑐‘𝑖) ∈ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))
146	145	adantlr 728	. . . . . . . . 9 ⊢ (((∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) ∧ 𝑖 ∈ 𝑋) → (𝑐‘𝑖) ∈ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))
147	146	adantll 727	. . . . . . . 8 ⊢ (((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) ∧ 𝑖 ∈ 𝑋) → (𝑐‘𝑖) ∈ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖)))
148	133, 114	sylanbr 594	. . . . . . . . . 10 ⊢ ((∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))) ∧ 𝑖 ∈ 𝑋) → (𝑑‘𝑖) ∈ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))
149	148	adantll 727	. . . . . . . . 9 ⊢ (((∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) ∧ 𝑖 ∈ 𝑋) → (𝑑‘𝑖) ∈ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))
150	149	adantll 727	. . . . . . . 8 ⊢ (((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) ∧ 𝑖 ∈ 𝑋) → (𝑑‘𝑖) ∈ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))
151	138, 139, 140, 141, 142, 143, 144, 147, 150	hoiqssbllem2 47778	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑘 ∈ 𝑋 (𝑐‘𝑘) ∈ (ℚ ∩ (((𝑌‘𝑘) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑘))) ∧ ∀𝑘 ∈ 𝑋 (𝑑‘𝑘) ∈ (ℚ ∩ ((𝑌‘𝑘)(,)((𝑌‘𝑘) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ⊆ (𝑌(ball‘(dist‘(ℝ^‘𝑋)))𝐸))
152	118, 137, 151	syl2anc 596	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ⊆ (𝑌(ball‘(dist‘(ℝ^‘𝑋)))𝐸))
153	117, 152	jca 521	. . . . 5 ⊢ ((((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) ∧ (∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋))))))))) → (𝑌 ∈ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ∧ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ⊆ (𝑌(ball‘(dist‘(ℝ^‘𝑋)))𝐸)))
154	153	ex 418	. . . 4 ⊢ (((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) ∧ 𝑑 ∈ (ℚ ↑_m 𝑋)) → ((∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → (𝑌 ∈ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ∧ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ⊆ (𝑌(ball‘(dist‘(ℝ^‘𝑋)))𝐸))))
155	154	reximdva 3179	. . 3 ⊢ ((𝜑 ∧ 𝑐 ∈ (ℚ ↑_m 𝑋)) → (∃𝑑 ∈ (ℚ ↑_m 𝑋)(∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → ∃𝑑 ∈ (ℚ ↑_m 𝑋)(𝑌 ∈ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ∧ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ⊆ (𝑌(ball‘(dist‘(ℝ^‘𝑋)))𝐸))))
156	155	reximdva 3179	. 2 ⊢ (𝜑 → (∃𝑐 ∈ (ℚ ↑_m 𝑋)∃𝑑 ∈ (ℚ ↑_m 𝑋)(∀𝑖 ∈ 𝑋 (𝑐‘𝑖) ∈ (ℚ ∩ (((𝑌‘𝑖) − (𝐸 / (2 · (√‘(♯‘𝑋)))))(,)(𝑌‘𝑖))) ∧ ∀𝑖 ∈ 𝑋 (𝑑‘𝑖) ∈ (ℚ ∩ ((𝑌‘𝑖)(,)((𝑌‘𝑖) + (𝐸 / (2 · (√‘(♯‘𝑋)))))))) → ∃𝑐 ∈ (ℚ ↑_m 𝑋)∃𝑑 ∈ (ℚ ↑_m 𝑋)(𝑌 ∈ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ∧ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ⊆ (𝑌(ball‘(dist‘(ℝ^‘𝑋)))𝐸))))
157	93, 156	mpd 16	1 ⊢ (𝜑 → ∃𝑐 ∈ (ℚ ↑_m 𝑋)∃𝑑 ∈ (ℚ ↑_m 𝑋)(𝑌 ∈ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ∧ X𝑖 ∈ 𝑋 ((𝑐‘𝑖)[,)(𝑑‘𝑖)) ⊆ (𝑌(ball‘(dist‘(ℝ^‘𝑋)))𝐸)))

Colors of variables: wff setvar class

This proof depends on syntax axioms: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1569 ∃wex 1811 ∈ wcel 2146 ≠ wne 2959 ∀wral 3080 ∃wrex 3090 Vcvv 3454 ⊆ wss 3900 ∩ cin 4092 ∅c0 4281 class class class wbr 5106 Fn wfn 6542 ⟶wf 6543 ‘cfv 6547 (class class class)co 7430 ↑_m cmap 8861 Xcixp 8939 Fincfn 8987 ℝcr 11212 + caddc 11216 · cmul 11218 < clt 11356 ≤ cle 11357 − cmin 11554 / cdiv 11986 ℕcn 12348 2c2 12410 ℚcq 13088 ℝ⁺crp 13133 (,)cioo 13489 [,)cico 13491 ♯chash 14487 √csqrt 15415 distcds 17452 ballcbl 21680 ℝ^crrx 25719

This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7761 ax-inf2 9655 ax-cnex 11269 ax-resscn 11270 ax-1cn 11271 ax-icn 11272 ax-addcl 11273 ax-addrcl 11274 ax-mulcl 11275 ax-mulrcl 11276 ax-mulcom 11277 ax-addass 11278 ax-mulass 11279 ax-distr 11280 ax-i2m1 11281 ax-1ne0 11282 ax-1rid 11283 ax-rnegex 11284 ax-rrecex 11285 ax-cnre 11286 ax-pre-lttri 11287 ax-pre-lttrn 11288 ax-pre-ltadd 11289 ax-pre-mulgt0 11290 ax-pre-sup 11291 ax-addf 11292 ax-mulf 11293

This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4839 df-uni 4871 df-int 4911 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-se 5609 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6311 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6501 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-isom 6556 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-of 7703 df-om 7888 df-1st 8011 df-2nd 8012 df-supp 8191 df-tpos 8257 df-frecs 8313 df-wrecs 8344 df-recs 8393 df-rdg 8432 df-1o 8490 df-er 8731 df-map 8863 df-ixp 8940 df-en 8988 df-dom 8989 df-sdom 8990 df-fin 8991 df-fsupp 9368 df-sup 9447 df-inf 9448 df-oi 9517 df-card 10033 df-pnf 11358 df-mnf 11359 df-xr 11360 df-ltxr 11361 df-le 11362 df-sub 11556 df-neg 11557 df-div 11987 df-nn 12349 df-2 12418 df-3 12419 df-4 12420 df-5 12421 df-6 12422 df-7 12423 df-8 12424 df-9 12425 df-n0 12620 df-z 12707 df-dec 12828 df-uz 12979 df-q 13089 df-rp 13134 df-xadd 13255 df-ioo 13493 df-ico 13495 df-fz 13653 df-fzo 13802 df-seq 14158 df-exp 14218 df-hash 14488 df-cj 15281 df-re 15282 df-im 15283 df-sqrt 15417 df-abs 15418 df-clim 15670 df-sum 15869 df-struct 17340 df-sets 17357 df-slot 17375 df-ndx 17387 df-base 17403 df-ress 17424 df-plusg 17456 df-mulr 17457 df-starv 17458 df-sca 17459 df-vsca 17460 df-ip 17461 df-tset 17462 df-ple 17463 df-ds 17465 df-unif 17466 df-hom 17467 df-cco 17468 df-0g 17627 df-gsum 17628 df-prds 17633 df-pws 17635 df-mgm 18831 df-sgrp 18923 df-mnd 18939 df-mhm 18993 df-grp 19162 df-minusg 19163 df-sbg 19164 df-subg 19348 df-ghm 19443 df-cntz 19546 df-cmn 20011 df-abl 20012 df-mgp 20376 df-rng 20390 df-ur 20423 df-ring 20476 df-cring 20477 df-oppr 20582 df-dvdsr 20602 df-unit 20603 df-invr 20633 df-dvr 20646 df-rhm 20717 df-subrng 20813 df-subrg 20837 df-drng 20997 df-field 20998 df-staf 21111 df-srng 21112 df-lmod 21152 df-lss 21222 df-sra 21463 df-rgmod 21464 df-psmet 21685 df-xmet 21686 df-met 21687 df-bl 21688 df-cnfld 21694 df-refld 21926 df-dsmm 22053 df-frlm 22068 df-nm 24916 df-tng 24918 df-tcph 25505 df-rrx 25721

This theorem is used by: hoiqssbl 47780

W3C validator