Theorem climmptf 41969

Description: Exhibit a function 𝐺 with the same convergence properties as the not-quite-function 𝐹. (Contributed by Glauco Siliprandi, 23-Oct-2021.)

Hypotheses

Ref	Expression
climmptf.k	⊢ Ⅎ𝑘𝐹
climmptf.m	⊢ (𝜑 → 𝑀 ∈ ℤ)
climmptf.f	⊢ (𝜑 → 𝐹 ∈ 𝑉)
climmptf.z	⊢ 𝑍 = (ℤ≥‘𝑀)
climmptf.g	⊢ 𝐺 = (𝑘 ∈ 𝑍 ↦ (𝐹‘𝑘))

Assertion

Ref	Expression
climmptf	⊢ (𝜑 → (𝐹 ⇝ 𝐴 ↔ 𝐺 ⇝ 𝐴))

Distinct variable group:   𝑘,𝑍

Allowed substitution hints:   𝜑(𝑘)   𝐴(𝑘)   𝐹(𝑘)   𝐺(𝑘)   𝑀(𝑘)   𝑉(𝑘)

Proof of Theorem climmptf

Dummy variable 𝑗 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		climmptf.m	. 2 ⊢ (𝜑 → 𝑀 ∈ ℤ)
2		climmptf.f	. 2 ⊢ (𝜑 → 𝐹 ∈ 𝑉)
3		climmptf.z	. . 3 ⊢ 𝑍 = (ℤ≥‘𝑀)
4		climmptf.g	. . . 4 ⊢ 𝐺 = (𝑘 ∈ 𝑍 ↦ (𝐹‘𝑘))
5		nfcv 2979	. . . . 5 ⊢ Ⅎ𝑗(𝐹‘𝑘)
6		climmptf.k	. . . . . 6 ⊢ Ⅎ𝑘𝐹
7		nfcv 2979	. . . . . 6 ⊢ Ⅎ𝑘𝑗
8	6, 7	nffv 6682	. . . . 5 ⊢ Ⅎ𝑘(𝐹‘𝑗)
9		fveq2 6672	. . . . 5 ⊢ (𝑘 = 𝑗 → (𝐹‘𝑘) = (𝐹‘𝑗))
10	5, 8, 9	cbvmpt 5169	. . . 4 ⊢ (𝑘 ∈ 𝑍 ↦ (𝐹‘𝑘)) = (𝑗 ∈ 𝑍 ↦ (𝐹‘𝑗))
11	4, 10	eqtri 2846	. . 3 ⊢ 𝐺 = (𝑗 ∈ 𝑍 ↦ (𝐹‘𝑗))
12	3, 11	climmpt 14930	. 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝐹 ∈ 𝑉) → (𝐹 ⇝ 𝐴 ↔ 𝐺 ⇝ 𝐴))
13	1, 2, 12	syl2anc 586	1 ⊢ (𝜑 → (𝐹 ⇝ 𝐴 ↔ 𝐺 ⇝ 𝐴))

Syntax hints:   → wi 4   ↔ wb 208   = wceq 1537   ∈ wcel 2114  Ⅎwnfc 2963   class class class wbr 5068   ↦ cmpt 5148  ‘cfv 6357  ℤcz 11984  ℤ_≥cuz 12246   ⇝ cli 14843

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2795  ax-rep 5192  ax-sep 5205  ax-nul 5212  ax-pow 5268  ax-pr 5332  ax-un 7463  ax-cnex 10595  ax-resscn 10596  ax-pre-lttri 10613  ax-pre-lttrn 10614

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2802  df-cleq 2816  df-clel 2895  df-nfc 2965  df-ne 3019  df-nel 3126  df-ral 3145  df-rex 3146  df-reu 3147  df-rab 3149  df-v 3498  df-sbc 3775  df-csb 3886  df-dif 3941  df-un 3943  df-in 3945  df-ss 3954  df-nul 4294  df-if 4470  df-pw 4543  df-sn 4570  df-pr 4572  df-op 4576  df-uni 4841  df-iun 4923  df-br 5069  df-opab 5131  df-mpt 5149  df-id 5462  df-po 5476  df-so 5477  df-xp 5563  df-rel 5564  df-cnv 5565  df-co 5566  df-dm 5567  df-rn 5568  df-res 5569  df-ima 5570  df-iota 6316  df-fun 6359  df-fn 6360  df-f 6361  df-f1 6362  df-fo 6363  df-f1o 6364  df-fv 6365  df-ov 7161  df-er 8291  df-en 8512  df-dom 8513  df-sdom 8514  df-pnf 10679  df-mnf 10680  df-xr 10681  df-ltxr 10682  df-le 10683  df-neg 10875  df-z 11985  df-uz 12247  df-clim 14847

This theorem is referenced by: (None)