Theorem ulmbdd 23956

Description: A uniform limit of bounded functions is bounded. (Contributed by Mario Carneiro, 27-Feb-2015.)

Hypotheses

Ref	Expression
ulmbdd.z	⊢ 𝑍 = (ℤ≥‘𝑀)
ulmbdd.m	⊢ (𝜑 → 𝑀 ∈ ℤ)
ulmbdd.f	⊢ (𝜑 → 𝐹:𝑍⟶(ℂ ↑𝑚 𝑆))
ulmbdd.b	⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → ∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥)
ulmbdd.u	⊢ (𝜑 → 𝐹(⇝𝑢‘𝑆)𝐺)

Assertion

Ref	Expression
ulmbdd	⊢ (𝜑 → ∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑥)

Distinct variable groups:   𝑥,𝑘,𝑧,𝐹   𝑘,𝐺,𝑥,𝑧   𝜑,𝑘,𝑥,𝑧   𝑆,𝑘,𝑥,𝑧   𝑘,𝑀,𝑧   𝑘,𝑍,𝑥,𝑧

Allowed substitution hint:   𝑀(𝑥)

Proof of Theorem ulmbdd

Dummy variables 𝑗 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		ulmbdd.z	. . 3 ⊢ 𝑍 = (ℤ≥‘𝑀)
2		ulmbdd.m	. . 3 ⊢ (𝜑 → 𝑀 ∈ ℤ)
3		ulmbdd.f	. . 3 ⊢ (𝜑 → 𝐹:𝑍⟶(ℂ ↑𝑚 𝑆))
4		eqidd 2611	. . 3 ⊢ ((𝜑 ∧ (𝑘 ∈ 𝑍 ∧ 𝑧 ∈ 𝑆)) → ((𝐹‘𝑘)‘𝑧) = ((𝐹‘𝑘)‘𝑧))
5		eqidd 2611	. . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝑆) → (𝐺‘𝑧) = (𝐺‘𝑧))
6		ulmbdd.u	. . 3 ⊢ (𝜑 → 𝐹(⇝𝑢‘𝑆)𝐺)
7		1rp 11712	. . . 4 ⊢ 1 ∈ ℝ+
8	7	a1i 11	. . 3 ⊢ (𝜑 → 1 ∈ ℝ+)
9	1, 2, 3, 4, 5, 6, 8	ulmi 23944	. 2 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1)
10	1	r19.2uz 13939	. . 3 ⊢ (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1 → ∃𝑘 ∈ 𝑍 ∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1)
11		ulmbdd.b	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → ∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥)
12		r19.26 3046	. . . . . . . . 9 ⊢ (∀𝑧 ∈ 𝑆 ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1) ↔ (∀𝑧 ∈ 𝑆 (abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ ∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))
13		peano2re 10088	. . . . . . . . . . 11 ⊢ (𝑥 ∈ ℝ → (𝑥 + 1) ∈ ℝ)
14	13	adantl 481	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) → (𝑥 + 1) ∈ ℝ)
15		ulmcl 23939	. . . . . . . . . . . . . . . . 17 ⊢ (𝐹(⇝𝑢‘𝑆)𝐺 → 𝐺:𝑆⟶ℂ)
16	6, 15	syl 17	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝐺:𝑆⟶ℂ)
17	16	ad3antrrr 762	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → 𝐺:𝑆⟶ℂ)
18		simprl 790	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → 𝑧 ∈ 𝑆)
19	17, 18	ffvelrnd 6268	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (𝐺‘𝑧) ∈ ℂ)
20	19	abscld 14023	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘(𝐺‘𝑧)) ∈ ℝ)
21	3	ad3antrrr 762	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → 𝐹:𝑍⟶(ℂ ↑𝑚 𝑆))
22		simpllr 795	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → 𝑘 ∈ 𝑍)
23	21, 22	ffvelrnd 6268	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (𝐹‘𝑘) ∈ (ℂ ↑𝑚 𝑆))
24		elmapi 7765	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐹‘𝑘) ∈ (ℂ ↑𝑚 𝑆) → (𝐹‘𝑘):𝑆⟶ℂ)
25	23, 24	syl 17	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (𝐹‘𝑘):𝑆⟶ℂ)
26	25, 18	ffvelrnd 6268	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → ((𝐹‘𝑘)‘𝑧) ∈ ℂ)
27	26	abscld 14023	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘((𝐹‘𝑘)‘𝑧)) ∈ ℝ)
28	19, 26	subcld 10271	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → ((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧)) ∈ ℂ)
29	28	abscld 14023	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) ∈ ℝ)
30	27, 29	readdcld 9948	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → ((abs‘((𝐹‘𝑘)‘𝑧)) + (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧)))) ∈ ℝ)
31	14	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (𝑥 + 1) ∈ ℝ)
32	26, 19	pncan3d 10274	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (((𝐹‘𝑘)‘𝑧) + ((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) = (𝐺‘𝑧))
33	32	fveq2d 6107	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘(((𝐹‘𝑘)‘𝑧) + ((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧)))) = (abs‘(𝐺‘𝑧)))
34	26, 28	abstrid 14043	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘(((𝐹‘𝑘)‘𝑧) + ((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧)))) ≤ ((abs‘((𝐹‘𝑘)‘𝑧)) + (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧)))))
35	33, 34	eqbrtrrd 4607	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘(𝐺‘𝑧)) ≤ ((abs‘((𝐹‘𝑘)‘𝑧)) + (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧)))))
36		simplr 788	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → 𝑥 ∈ ℝ)
37		1re 9918	. . . . . . . . . . . . . . 15 ⊢ 1 ∈ ℝ
38	37	a1i 11	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → 1 ∈ ℝ)
39		simprrl 800	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥)
40	19, 26	abssubd 14040	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) = (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))))
41		simprrr 801	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1)
42	40, 41	eqbrtrd 4605	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) < 1)
43		ltle 10005	. . . . . . . . . . . . . . . 16 ⊢ (((abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) ∈ ℝ ∧ 1 ∈ ℝ) → ((abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) < 1 → (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) ≤ 1))
44	29, 37, 43	sylancl 693	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → ((abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) < 1 → (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) ≤ 1))
45	42, 44	mpd 15	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧))) ≤ 1)
46	27, 29, 36, 38, 39, 45	le2addd 10525	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → ((abs‘((𝐹‘𝑘)‘𝑧)) + (abs‘((𝐺‘𝑧) − ((𝐹‘𝑘)‘𝑧)))) ≤ (𝑥 + 1))
47	20, 30, 31, 35, 46	letrd 10073	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ (𝑧 ∈ 𝑆 ∧ ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1))) → (abs‘(𝐺‘𝑧)) ≤ (𝑥 + 1))
48	47	expr 641	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) ∧ 𝑧 ∈ 𝑆) → (((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1) → (abs‘(𝐺‘𝑧)) ≤ (𝑥 + 1)))
49	48	ralimdva 2945	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) → (∀𝑧 ∈ 𝑆 ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1) → ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ (𝑥 + 1)))
50		breq2 4587	. . . . . . . . . . . 12 ⊢ (𝑦 = (𝑥 + 1) → ((abs‘(𝐺‘𝑧)) ≤ 𝑦 ↔ (abs‘(𝐺‘𝑧)) ≤ (𝑥 + 1)))
51	50	ralbidv 2969	. . . . . . . . . . 11 ⊢ (𝑦 = (𝑥 + 1) → (∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦 ↔ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ (𝑥 + 1)))
52	51	rspcev 3282	. . . . . . . . . 10 ⊢ (((𝑥 + 1) ∈ ℝ ∧ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ (𝑥 + 1)) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦)
53	14, 49, 52	syl6an 566	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) → (∀𝑧 ∈ 𝑆 ((abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦))
54	12, 53	syl5bir 232	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) → ((∀𝑧 ∈ 𝑆 (abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 ∧ ∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦))
55	54	expd 451	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑘 ∈ 𝑍) ∧ 𝑥 ∈ ℝ) → (∀𝑧 ∈ 𝑆 (abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 → (∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1 → ∃𝑦 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦)))
56	55	rexlimdva 3013	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘((𝐹‘𝑘)‘𝑧)) ≤ 𝑥 → (∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1 → ∃𝑦 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦)))
57	11, 56	mpd 15	. . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1 → ∃𝑦 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦))
58		breq2 4587	. . . . . . 7 ⊢ (𝑦 = 𝑥 → ((abs‘(𝐺‘𝑧)) ≤ 𝑦 ↔ (abs‘(𝐺‘𝑧)) ≤ 𝑥))
59	58	ralbidv 2969	. . . . . 6 ⊢ (𝑦 = 𝑥 → (∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦 ↔ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑥))
60	59	cbvrexv 3148	. . . . 5 ⊢ (∃𝑦 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑦 ↔ ∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑥)
61	57, 60	syl6ib 240	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1 → ∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑥))
62	61	rexlimdva 3013	. . 3 ⊢ (𝜑 → (∃𝑘 ∈ 𝑍 ∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1 → ∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑥))
63	10, 62	syl5 33	. 2 ⊢ (𝜑 → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)∀𝑧 ∈ 𝑆 (abs‘(((𝐹‘𝑘)‘𝑧) − (𝐺‘𝑧))) < 1 → ∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑥))
64	9, 63	mpd 15	1 ⊢ (𝜑 → ∃𝑥 ∈ ℝ ∀𝑧 ∈ 𝑆 (abs‘(𝐺‘𝑧)) ≤ 𝑥)

Syntax hints:   → wi 4   ∧ wa 383   = wceq 1475   ∈ wcel 1977  ∀wral 2896  ∃wrex 2897   class class class wbr 4583  ⟶wf 5800  ‘cfv 5804  (class class class)co 6549   ↑_𝑚 cmap 7744  ℂcc 9813  ℝcr 9814  1c1 9816   + caddc 9818   < clt 9953   ≤ cle 9954   − cmin 10145  ℤcz 11254  ℤ_≥cuz 11563  ℝ⁺crp 11708  abscabs 13822  ⇝_𝑢culm 23934

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892  ax-pre-sup 9893

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-1st 7059  df-2nd 7060  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-er 7629  df-map 7746  df-pm 7747  df-en 7842  df-dom 7843  df-sdom 7844  df-sup 8231  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-div 10564  df-nn 10898  df-2 10956  df-3 10957  df-n0 11170  df-z 11255  df-uz 11564  df-rp 11709  df-seq 12664  df-exp 12723  df-cj 13687  df-re 13688  df-im 13689  df-sqrt 13823  df-abs 13824  df-ulm 23935

This theorem is referenced by:  mtestbdd  23963