Theorem limsupequzmptlem 39960

Description: Two functions that are eventually equal to one another have the same superior limit. (Contributed by Glauco Siliprandi, 23-Oct-2021.)

Hypotheses

Ref	Expression
limsupequzmptlem.j	⊢ Ⅎ𝑗𝜑
limsupequzmptlem.m	⊢ (𝜑 → 𝑀 ∈ ℤ)
limsupequzmptlem.n	⊢ (𝜑 → 𝑁 ∈ ℤ)
limsupequzmptlem.a	⊢ 𝐴 = (ℤ≥‘𝑀)
limsupequzmptlem.b	⊢ 𝐵 = (ℤ≥‘𝑁)
limsupequzmptlem.c	⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → 𝐶 ∈ 𝑉)
limsupequzmptlem.d	⊢ ((𝜑 ∧ 𝑗 ∈ 𝐵) → 𝐶 ∈ 𝑊)
limsupequzmptlem.k	⊢ 𝐾 = if(𝑀 ≤ 𝑁, 𝑁, 𝑀)

Assertion

Ref	Expression
limsupequzmptlem	⊢ (𝜑 → (lim sup‘(𝑗 ∈ 𝐴 ↦ 𝐶)) = (lim sup‘(𝑗 ∈ 𝐵 ↦ 𝐶)))

Distinct variable groups:   𝐴,𝑗   𝐵,𝑗   𝑗,𝐾   𝑗,𝑀   𝑗,𝑁

Allowed substitution hints:   𝜑(𝑗)   𝐶(𝑗)   𝑉(𝑗)   𝑊(𝑗)

Proof of Theorem limsupequzmptlem

Step	Hyp	Ref	Expression
1		limsupequzmptlem.j	. 2 ⊢ Ⅎ𝑗𝜑
2		nfmpt1 4747	. 2 ⊢ Ⅎ𝑗(𝑗 ∈ 𝐴 ↦ 𝐶)
3		nfmpt1 4747	. 2 ⊢ Ⅎ𝑗(𝑗 ∈ 𝐵 ↦ 𝐶)
4		limsupequzmptlem.m	. 2 ⊢ (𝜑 → 𝑀 ∈ ℤ)
5		limsupequzmptlem.a	. . . . . . 7 ⊢ 𝐴 = (ℤ≥‘𝑀)
6	5	eqcomi 2631	. . . . . 6 ⊢ (ℤ≥‘𝑀) = 𝐴
7	6	eleq2i 2693	. . . . 5 ⊢ (𝑗 ∈ (ℤ≥‘𝑀) ↔ 𝑗 ∈ 𝐴)
8	7	biimpi 206	. . . 4 ⊢ (𝑗 ∈ (ℤ≥‘𝑀) → 𝑗 ∈ 𝐴)
9		limsupequzmptlem.c	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → 𝐶 ∈ 𝑉)
10	8, 9	sylan2 491	. . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝑀)) → 𝐶 ∈ 𝑉)
11	5	mpteq1i 4739	. . 3 ⊢ (𝑗 ∈ 𝐴 ↦ 𝐶) = (𝑗 ∈ (ℤ≥‘𝑀) ↦ 𝐶)
12	1, 10, 11	fnmptd 39434	. 2 ⊢ (𝜑 → (𝑗 ∈ 𝐴 ↦ 𝐶) Fn (ℤ≥‘𝑀))
13		limsupequzmptlem.n	. 2 ⊢ (𝜑 → 𝑁 ∈ ℤ)
14		limsupequzmptlem.b	. . . . . . 7 ⊢ 𝐵 = (ℤ≥‘𝑁)
15	14	eleq2i 2693	. . . . . 6 ⊢ (𝑗 ∈ 𝐵 ↔ 𝑗 ∈ (ℤ≥‘𝑁))
16	15	bicomi 214	. . . . 5 ⊢ (𝑗 ∈ (ℤ≥‘𝑁) ↔ 𝑗 ∈ 𝐵)
17	16	biimpi 206	. . . 4 ⊢ (𝑗 ∈ (ℤ≥‘𝑁) → 𝑗 ∈ 𝐵)
18		limsupequzmptlem.d	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐵) → 𝐶 ∈ 𝑊)
19	17, 18	sylan2 491	. . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝑁)) → 𝐶 ∈ 𝑊)
20	14	mpteq1i 4739	. . 3 ⊢ (𝑗 ∈ 𝐵 ↦ 𝐶) = (𝑗 ∈ (ℤ≥‘𝑁) ↦ 𝐶)
21	1, 19, 20	fnmptd 39434	. 2 ⊢ (𝜑 → (𝑗 ∈ 𝐵 ↦ 𝐶) Fn (ℤ≥‘𝑁))
22		limsupequzmptlem.k	. . 3 ⊢ 𝐾 = if(𝑀 ≤ 𝑁, 𝑁, 𝑀)
23	13, 4	ifcld 4131	. . 3 ⊢ (𝜑 → if(𝑀 ≤ 𝑁, 𝑁, 𝑀) ∈ ℤ)
24	22, 23	syl5eqel 2705	. 2 ⊢ (𝜑 → 𝐾 ∈ ℤ)
25		eqid 2622	. . . . . . . . 9 ⊢ (ℤ≥‘𝑀) = (ℤ≥‘𝑀)
26	4	zred 11482	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑀 ∈ ℝ)
27	13	zred 11482	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑁 ∈ ℝ)
28		max1 12016	. . . . . . . . . . 11 ⊢ ((𝑀 ∈ ℝ ∧ 𝑁 ∈ ℝ) → 𝑀 ≤ if(𝑀 ≤ 𝑁, 𝑁, 𝑀))
29	26, 27, 28	syl2anc 693	. . . . . . . . . 10 ⊢ (𝜑 → 𝑀 ≤ if(𝑀 ≤ 𝑁, 𝑁, 𝑀))
30	29, 22	syl6breqr 4695	. . . . . . . . 9 ⊢ (𝜑 → 𝑀 ≤ 𝐾)
31	25, 4, 24, 30	eluzd 39635	. . . . . . . 8 ⊢ (𝜑 → 𝐾 ∈ (ℤ≥‘𝑀))
32	31	uzssd 39634	. . . . . . 7 ⊢ (𝜑 → (ℤ≥‘𝐾) ⊆ (ℤ≥‘𝑀))
33	6	a1i 11	. . . . . . 7 ⊢ (𝜑 → (ℤ≥‘𝑀) = 𝐴)
34	32, 33	sseqtrd 3641	. . . . . 6 ⊢ (𝜑 → (ℤ≥‘𝐾) ⊆ 𝐴)
35	34	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → (ℤ≥‘𝐾) ⊆ 𝐴)
36		simpr 477	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → 𝑗 ∈ (ℤ≥‘𝐾))
37	35, 36	sseldd 3604	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → 𝑗 ∈ 𝐴)
38	37, 9	syldan 487	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → 𝐶 ∈ 𝑉)
39		eqid 2622	. . . . 5 ⊢ (𝑗 ∈ 𝐴 ↦ 𝐶) = (𝑗 ∈ 𝐴 ↦ 𝐶)
40	39	fvmpt2 6291	. . . 4 ⊢ ((𝑗 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → ((𝑗 ∈ 𝐴 ↦ 𝐶)‘𝑗) = 𝐶)
41	37, 38, 40	syl2anc 693	. . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → ((𝑗 ∈ 𝐴 ↦ 𝐶)‘𝑗) = 𝐶)
42		eqid 2622	. . . . . . . . 9 ⊢ (ℤ≥‘𝑁) = (ℤ≥‘𝑁)
43		max2 12018	. . . . . . . . . . 11 ⊢ ((𝑀 ∈ ℝ ∧ 𝑁 ∈ ℝ) → 𝑁 ≤ if(𝑀 ≤ 𝑁, 𝑁, 𝑀))
44	26, 27, 43	syl2anc 693	. . . . . . . . . 10 ⊢ (𝜑 → 𝑁 ≤ if(𝑀 ≤ 𝑁, 𝑁, 𝑀))
45	44, 22	syl6breqr 4695	. . . . . . . . 9 ⊢ (𝜑 → 𝑁 ≤ 𝐾)
46	42, 13, 24, 45	eluzd 39635	. . . . . . . 8 ⊢ (𝜑 → 𝐾 ∈ (ℤ≥‘𝑁))
47	46	uzssd 39634	. . . . . . 7 ⊢ (𝜑 → (ℤ≥‘𝐾) ⊆ (ℤ≥‘𝑁))
48	14	eqcomi 2631	. . . . . . . 8 ⊢ (ℤ≥‘𝑁) = 𝐵
49	48	a1i 11	. . . . . . 7 ⊢ (𝜑 → (ℤ≥‘𝑁) = 𝐵)
50	47, 49	sseqtrd 3641	. . . . . 6 ⊢ (𝜑 → (ℤ≥‘𝐾) ⊆ 𝐵)
51	50	adantr 481	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → (ℤ≥‘𝐾) ⊆ 𝐵)
52	51, 36	sseldd 3604	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → 𝑗 ∈ 𝐵)
53		eqid 2622	. . . . 5 ⊢ (𝑗 ∈ 𝐵 ↦ 𝐶) = (𝑗 ∈ 𝐵 ↦ 𝐶)
54	53	fvmpt2 6291	. . . 4 ⊢ ((𝑗 ∈ 𝐵 ∧ 𝐶 ∈ 𝑉) → ((𝑗 ∈ 𝐵 ↦ 𝐶)‘𝑗) = 𝐶)
55	52, 38, 54	syl2anc 693	. . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → ((𝑗 ∈ 𝐵 ↦ 𝐶)‘𝑗) = 𝐶)
56	41, 55	eqtr4d 2659	. 2 ⊢ ((𝜑 ∧ 𝑗 ∈ (ℤ≥‘𝐾)) → ((𝑗 ∈ 𝐴 ↦ 𝐶)‘𝑗) = ((𝑗 ∈ 𝐵 ↦ 𝐶)‘𝑗))
57	1, 2, 3, 4, 12, 13, 21, 24, 56	limsupequz 39955	1 ⊢ (𝜑 → (lim sup‘(𝑗 ∈ 𝐴 ↦ 𝐶)) = (lim sup‘(𝑗 ∈ 𝐵 ↦ 𝐶)))

Syntax hints:   → wi 4   ∧ wa 384   = wceq 1483  Ⅎwnf 1708   ∈ wcel 1990   ⊆ wss 3574  ifcif 4086   class class class wbr 4653   ↦ cmpt 4729  ‘cfv 5888  ℝcr 9935   ≤ cle 10075  ℤcz 11377  ℤ_≥cuz 11687  lim supclsp 14201

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-pre-sup 10014

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-om 7066  df-1st 7168  df-2nd 7169  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-1o 7560  df-oadd 7564  df-er 7742  df-en 7956  df-dom 7957  df-sdom 7958  df-fin 7959  df-sup 8348  df-inf 8349  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-nn 11021  df-n0 11293  df-z 11378  df-uz 11688  df-q 11789  df-ico 12181  df-limsup 14202

This theorem is referenced by:  limsupequzmpt  39961