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Theorem cau3lem 15354

Description: Lemma for cau3 15355. (Contributed by Mario Carneiro, 15-Feb-2014.) (Revised by Mario Carneiro, 1-May-2014.)

**Hypotheses**
Ref	Expression
cau3lem.1	⊢ 𝑍 ⊆ ℤ
cau3lem.2	⊢ (𝜏 → 𝜓)
cau3lem.3	⊢ ((𝐹‘𝑘) = (𝐹‘𝑗) → (𝜓 ↔ 𝜒))
cau3lem.4	⊢ ((𝐹‘𝑘) = (𝐹‘𝑚) → (𝜓 ↔ 𝜃))
cau3lem.5	⊢ ((𝜑 ∧ 𝜒 ∧ 𝜓) → (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) = (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))))
cau3lem.6	⊢ ((𝜑 ∧ 𝜃 ∧ 𝜒) → (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) = (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))))
cau3lem.7	⊢ ((𝜑 ∧ (𝜓 ∧ 𝜃) ∧ (𝜒 ∧ 𝑥 ∈ ℝ)) → (((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) ∧ (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < (𝑥 / 2)) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))

**Assertion**
Ref	Expression
cau3lem	⊢ (𝜑 → (∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥) ↔ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))

Distinct variable groups: 𝑘,𝑚,𝜒 𝑥,𝑘,𝐷,𝑚 𝑘,𝐹,𝑚,𝑥 𝑗,𝑘,𝑚,𝑥,𝜑 𝑘,𝐺,𝑚,𝑥 𝜓,𝑚,𝑥 𝜏,𝑥 𝜃,𝑘 𝑥,𝑍 Allowed substitution hints: 𝜓(𝑗,𝑘) 𝜒(𝑥,𝑗) 𝜃(𝑥,𝑗,𝑚) 𝜏(𝑗,𝑘,𝑚) 𝐷(𝑗) 𝐹(𝑗) 𝐺(𝑗) 𝑍(𝑗,𝑘,𝑚)

Proof of Theorem cau3lem Dummy variable 𝑧 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		breq2 5094	. . . . . 6 ⊢ (𝑥 = 𝑧 → ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥 ↔ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧))
2	1	anbi2d 638	. . . . 5 ⊢ (𝑥 = 𝑧 → ((𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥) ↔ (𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧)))
3	2	rexralbidv 3218	. . . 4 ⊢ (𝑥 = 𝑧 → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥) ↔ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧)))
4	3	cbvralvw 3230	. . 3 ⊢ (∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥) ↔ ∀𝑧 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧))
5		rphalfcl 13008	. . . . . . 7 ⊢ (𝑥 ∈ ℝ⁺ → (𝑥 / 2) ∈ ℝ⁺)
6		breq2 5094	. . . . . . . . . 10 ⊢ (𝑧 = (𝑥 / 2) → ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧 ↔ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))
7	6	anbi2d 638	. . . . . . . . 9 ⊢ (𝑧 = (𝑥 / 2) → ((𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧) ↔ (𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
8	7	rexralbidv 3218	. . . . . . . 8 ⊢ (𝑧 = (𝑥 / 2) → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧) ↔ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
9	8	rspcv 3568	. . . . . . 7 ⊢ ((𝑥 / 2) ∈ ℝ⁺ → (∀𝑧 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧) → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
10	5, 9	syl 17	. . . . . 6 ⊢ (𝑥 ∈ ℝ⁺ → (∀𝑧 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧) → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
11	10	adantl 484	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ⁺) → (∀𝑧 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧) → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
12		cau3lem.2	. . . . . . . . . 10 ⊢ (𝜏 → 𝜓)
13	12	ralimi 3089	. . . . . . . . 9 ⊢ (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 → ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓)
14		r19.26 3112	. . . . . . . . . . . . 13 ⊢ (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) ↔ (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))
15		fveq2 6852	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑘 = 𝑚 → (𝐹‘𝑘) = (𝐹‘𝑚))
16		cau3lem.4	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹‘𝑘) = (𝐹‘𝑚) → (𝜓 ↔ 𝜃))
17	15, 16	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ (𝑘 = 𝑚 → (𝜓 ↔ 𝜃))
18	15	fvoveq1d 7403	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑘 = 𝑚 → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) = (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))))
19	18	breq1d 5100	. . . . . . . . . . . . . . . . 17 ⊢ (𝑘 = 𝑚 → ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) ↔ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))
20	17, 19	anbi12d 640	. . . . . . . . . . . . . . . 16 ⊢ (𝑘 = 𝑚 → ((𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) ↔ (𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
21	20	cbvralvw 3230	. . . . . . . . . . . . . . 15 ⊢ (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) ↔ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))
22	21	biimpi 218	. . . . . . . . . . . . . 14 ⊢ (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))
23	22	a1i 11	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
24	14, 23	biimtrrid 245	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) → ((∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
25	24	expdimp 455	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))))
26		cau3lem.1	. . . . . . . . . . . . . . 15 ⊢ 𝑍 ⊆ ℤ
27	26	sseli 3923	. . . . . . . . . . . . . 14 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ ℤ)
28		uzid 12840	. . . . . . . . . . . . . 14 ⊢ (𝑗 ∈ ℤ → 𝑗 ∈ (ℤ_≥‘𝑗))
29	27, 28	syl 17	. . . . . . . . . . . . 13 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ (ℤ_≥‘𝑗))
30		fveq2 6852	. . . . . . . . . . . . . . 15 ⊢ (𝑘 = 𝑗 → (𝐹‘𝑘) = (𝐹‘𝑗))
31		cau3lem.3	. . . . . . . . . . . . . . 15 ⊢ ((𝐹‘𝑘) = (𝐹‘𝑗) → (𝜓 ↔ 𝜒))
32	30, 31	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝑘 = 𝑗 → (𝜓 ↔ 𝜒))
33	32	rspcva 3570	. . . . . . . . . . . . 13 ⊢ ((𝑗 ∈ (ℤ_≥‘𝑗) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → 𝜒)
34	29, 33	sylan 588	. . . . . . . . . . . 12 ⊢ ((𝑗 ∈ 𝑍 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → 𝜒)
35	34	adantll 722	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → 𝜒)
36	25, 35	jctild 532	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → (𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))))
37		simplll 782	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → 𝜑)
38		simplrr 785	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → 𝜃)
39		simplrl 784	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → 𝜒)
40		cau3lem.6	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ⊢ ((𝜑 ∧ 𝜃 ∧ 𝜒) → (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) = (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))))
41	37, 38, 39, 40	syl3anc 1382	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) = (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))))
42	41	breq1d 5100	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → ((𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2) ↔ (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < (𝑥 / 2)))
43	42	anbi2d 638	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → (((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) ↔ ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) ∧ (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < (𝑥 / 2))))
44		simpr 487	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → 𝜓)
45		simpllr 783	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → 𝑥 ∈ ℝ⁺)
46	45	rpred 13023	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → 𝑥 ∈ ℝ)
47		cau3lem.7	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜃) ∧ (𝜒 ∧ 𝑥 ∈ ℝ)) → (((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) ∧ (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < (𝑥 / 2)) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
48	37, 44, 38, 39, 46, 47	syl122anc 1390	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → (((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) ∧ (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < (𝑥 / 2)) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
49	43, 48	sylbid 242	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → (((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
50	49	expd 418	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ 𝜓) → ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → ((𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
51	50	impr 457	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ 𝜃)) ∧ (𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) → ((𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
52	51	an32s 660	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) ∧ (𝜒 ∧ 𝜃)) → ((𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
53	52	anassrs 470	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) ∧ 𝜒) ∧ 𝜃) → ((𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
54	53	expimpd 456	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) ∧ 𝜒) → ((𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
55	54	ralimdv 3166	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) ∧ 𝜒) → (∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
56	55	impr 457	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) ∧ (𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))) → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)
57	56	an32s 660	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))) ∧ (𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)
58	57	expr 459	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))) ∧ 𝜓) → ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
59		uzss 12848	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑘 ∈ (ℤ_≥‘𝑗) → (ℤ_≥‘𝑘) ⊆ (ℤ_≥‘𝑗))
60		ssralv 3996	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((ℤ_≥‘𝑘) ⊆ (ℤ_≥‘𝑗) → (∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥 → ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
61	59, 60	syl 17	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑘 ∈ (ℤ_≥‘𝑗) → (∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥 → ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
62	58, 61	sylan9 514	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))) ∧ 𝜓) ∧ 𝑘 ∈ (ℤ_≥‘𝑗)) → ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
63	62	an32s 660	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))) ∧ 𝑘 ∈ (ℤ_≥‘𝑗)) ∧ 𝜓) → ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
64	63	expimpd 456	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))) ∧ 𝑘 ∈ (ℤ_≥‘𝑗)) → ((𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
65	64	ralimdva 3164	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ (𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
66	65	ex 415	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ⁺) → ((𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
67	66	com23 86	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ⁺) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ((𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) → ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
68	67	adantr 483	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜓 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ((𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) → ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
69	14, 68	biimtrrid 245	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) → ((∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ((𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) → ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
70	69	expdimp 455	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → ((𝜒 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝜃 ∧ (𝐺‘((𝐹‘𝑚)𝐷(𝐹‘𝑗))) < (𝑥 / 2))) → ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
71	36, 70	mpdd 43	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
72	13, 71	sylan2 601	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2) → ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
73	72	imdistanda 578	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) → ((∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
74		r19.26 3112	. . . . . . 7 ⊢ (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) ↔ (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)))
75		r19.26 3112	. . . . . . 7 ⊢ (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥) ↔ (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥))
76	73, 74, 75	3imtr4g 298	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ⁺) ∧ 𝑗 ∈ 𝑍) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
77	76	reximdva 3165	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ⁺) → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < (𝑥 / 2)) → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
78	11, 77	syld 47	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ⁺) → (∀𝑧 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧) → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
79	78	ralrimdva 3152	. . 3 ⊢ (𝜑 → (∀𝑧 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑧) → ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
80	4, 79	biimtrid 244	. 2 ⊢ (𝜑 → (∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥) → ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))
81		fveq2 6852	. . . . . . . . . . . 12 ⊢ (𝑘 = 𝑗 → (ℤ_≥‘𝑘) = (ℤ_≥‘𝑗))
82	30	fvoveq1d 7403	. . . . . . . . . . . . 13 ⊢ (𝑘 = 𝑗 → (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) = (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))))
83	82	breq1d 5100	. . . . . . . . . . . 12 ⊢ (𝑘 = 𝑗 → ((𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥 ↔ (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < 𝑥))
84	81, 83	raleqbidv 3326	. . . . . . . . . . 11 ⊢ (𝑘 = 𝑗 → (∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥 ↔ ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < 𝑥))
85	84	rspcv 3568	. . . . . . . . . 10 ⊢ (𝑗 ∈ (ℤ_≥‘𝑗) → (∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥 → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < 𝑥))
86	85	ad2antlr 735	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥 → ∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < 𝑥))
87		fveq2 6852	. . . . . . . . . . . . . 14 ⊢ (𝑚 = 𝑘 → (𝐹‘𝑚) = (𝐹‘𝑘))
88	87	oveq2d 7397	. . . . . . . . . . . . 13 ⊢ (𝑚 = 𝑘 → ((𝐹‘𝑗)𝐷(𝐹‘𝑚)) = ((𝐹‘𝑗)𝐷(𝐹‘𝑘)))
89	88	fveq2d 6856	. . . . . . . . . . . 12 ⊢ (𝑚 = 𝑘 → (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) = (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))))
90	89	breq1d 5100	. . . . . . . . . . 11 ⊢ (𝑚 = 𝑘 → ((𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < 𝑥 ↔ (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥))
91	90	cbvralvw 3230	. . . . . . . . . 10 ⊢ (∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < 𝑥 ↔ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥)
92	33	anim2i 625	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ (𝑗 ∈ (ℤ_≥‘𝑗) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓)) → (𝜑 ∧ 𝜒))
93	92	anassrs 470	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (𝜑 ∧ 𝜒))
94		simpr 487	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓)
95		cau3lem.5	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝜒 ∧ 𝜓) → (𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) = (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))))
96	95	breq1d 5100	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝜒 ∧ 𝜓) → ((𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥 ↔ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥))
97	96	3expia 1130	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝜒) → (𝜓 → ((𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥 ↔ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥)))
98	97	ralimdv 3166	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝜒) → (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓 → ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥 ↔ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥)))
99	93, 94, 98	sylc 65	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → ∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥 ↔ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥))
100		ralbi 3107	. . . . . . . . . . 11 ⊢ (∀𝑘 ∈ (ℤ_≥‘𝑗)((𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥 ↔ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥 ↔ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥))
101	99, 100	syl 17	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑘))) < 𝑥 ↔ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥))
102	91, 101	bitrid 285	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (∀𝑚 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑗)𝐷(𝐹‘𝑚))) < 𝑥 ↔ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥))
103	86, 102	sylibd 241	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜓) → (∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥 → ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥))
104	13, 103	sylan2 601	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏) → (∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥 → ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥))
105	104	imdistanda 578	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ_≥‘𝑗)) → ((∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥) → (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥)))
106	29, 105	sylan2 601	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → ((∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥) → (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥)))
107		r19.26 3112	. . . . 5 ⊢ (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥) ↔ (∀𝑘 ∈ (ℤ_≥‘𝑗)𝜏 ∧ ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥))
108	106, 75, 107	3imtr4g 298	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥) → ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥)))
109	108	reximdva 3165	. . 3 ⊢ (𝜑 → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥) → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥)))
110	109	ralimdv 3166	. 2 ⊢ (𝜑 → (∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥) → ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥)))
111	80, 110	impbid 214	1 ⊢ (𝜑 → (∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ (𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑗))) < 𝑥) ↔ ∀𝑥 ∈ ℝ⁺ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ_≥‘𝑗)(𝜏 ∧ ∀𝑚 ∈ (ℤ_≥‘𝑘)(𝐺‘((𝐹‘𝑘)𝐷(𝐹‘𝑚))) < 𝑥)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 ∧ w3a 1095 = wceq 1550 ∈ wcel 2132 ∀wral 3066 ∃wrex 3076 ⊆ wss 3895 class class class wbr 5090 ‘cfv 6506 (class class class)co 7381 ℝcr 11058 < clt 11202 / cdiv 11830 2c2 12258 ℤcz 12554 ℤ_≥cuz 12825 ℝ⁺crp 12979

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1805 ax-4 1819 ax-5 1920 ax-6 1977 ax-7 2018 ax-8 2134 ax-9 2142 ax-10 2165 ax-11 2181 ax-12 2202 ax-ext 2724 ax-sep 5236 ax-nul 5246 ax-pow 5312 ax-pr 5380 ax-un 7703 ax-cnex 11115 ax-resscn 11116 ax-1cn 11117 ax-icn 11118 ax-addcl 11119 ax-addrcl 11120 ax-mulcl 11121 ax-mulrcl 11122 ax-mulcom 11123 ax-addass 11124 ax-mulass 11125 ax-distr 11126 ax-i2m1 11127 ax-1ne0 11128 ax-1rid 11129 ax-rnegex 11130 ax-rrecex 11131 ax-cnre 11132 ax-pre-lttri 11133 ax-pre-lttrn 11134 ax-pre-ltadd 11135 ax-pre-mulgt0 11136

This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1553 df-fal 1563 df-ex 1790 df-nf 1794 df-sb 2081 df-mo 2556 df-eu 2586 df-clab 2731 df-cleq 2744 df-clel 2827 df-nfc 2901 df-ne 2948 df-nel 3052 df-ral 3067 df-rex 3077 df-rmo 3357 df-reu 3358 df-rab 3405 df-v 3446 df-sbc 3736 df-csb 3844 df-dif 3898 df-un 3900 df-in 3902 df-ss 3912 df-pss 3915 df-nul 4277 df-if 4471 df-pw 4547 df-sn 4573 df-pr 4575 df-op 4579 df-uni 4856 df-iun 4941 df-br 5091 df-opab 5153 df-mpt 5172 df-tr 5198 df-id 5531 df-eprel 5536 df-po 5544 df-so 5545 df-fr 5589 df-we 5591 df-xp 5642 df-rel 5643 df-cnv 5644 df-co 5645 df-dm 5646 df-rn 5647 df-res 5648 df-ima 5649 df-pred 6273 df-ord 6334 df-on 6335 df-lim 6336 df-suc 6337 df-iota 6462 df-fun 6508 df-fn 6509 df-f 6510 df-f1 6511 df-fo 6512 df-f1o 6513 df-fv 6514 df-riota 7338 df-ov 7384 df-oprab 7385 df-mpo 7386 df-om 7832 df-2nd 7956 df-frecs 8246 df-wrecs 8277 df-recs 8326 df-rdg 8365 df-er 8662 df-en 8913 df-dom 8914 df-sdom 8915 df-pnf 11204 df-mnf 11205 df-xr 11206 df-ltxr 11207 df-le 11208 df-sub 11402 df-neg 11403 df-div 11831 df-nn 12197 df-2 12266 df-z 12555 df-uz 12826 df-rp 12980

This theorem is referenced by: cau3 15355 iscau3 25309

W3C validator