Theorem lmcn2 14600

Description: The image of a convergent sequence under a continuous map is convergent to the image of the original point. Binary operation version. (Contributed by Mario Carneiro, 15-May-2014.)

Hypotheses

Ref	Expression
txlm.z	⊢ 𝑍 = (ℤ≥‘𝑀)
txlm.m	⊢ (𝜑 → 𝑀 ∈ ℤ)
txlm.j	⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋))
txlm.k	⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑌))
txlm.f	⊢ (𝜑 → 𝐹:𝑍⟶𝑋)
txlm.g	⊢ (𝜑 → 𝐺:𝑍⟶𝑌)
lmcn2.fl	⊢ (𝜑 → 𝐹(⇝𝑡‘𝐽)𝑅)
lmcn2.gl	⊢ (𝜑 → 𝐺(⇝𝑡‘𝐾)𝑆)
lmcn2.o	⊢ (𝜑 → 𝑂 ∈ ((𝐽 ×t 𝐾) Cn 𝑁))
lmcn2.h	⊢ 𝐻 = (𝑛 ∈ 𝑍 ↦ ((𝐹‘𝑛)𝑂(𝐺‘𝑛)))

Assertion

Ref	Expression
lmcn2	⊢ (𝜑 → 𝐻(⇝𝑡‘𝑁)(𝑅𝑂𝑆))

Distinct variable groups:   𝑛,𝐹   𝑛,𝑂   𝜑,𝑛   𝑛,𝐺   𝑛,𝐽   𝑛,𝐾   𝑛,𝑋   𝑛,𝑌   𝑛,𝑍

Allowed substitution hints:   𝑅(𝑛)   𝑆(𝑛)   𝐻(𝑛)   𝑀(𝑛)   𝑁(𝑛)

Proof of Theorem lmcn2

Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		txlm.f	. . . . . . 7 ⊢ (𝜑 → 𝐹:𝑍⟶𝑋)
2	1	ffvelcdmda 5700	. . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → (𝐹‘𝑛) ∈ 𝑋)
3		txlm.g	. . . . . . 7 ⊢ (𝜑 → 𝐺:𝑍⟶𝑌)
4	3	ffvelcdmda 5700	. . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → (𝐺‘𝑛) ∈ 𝑌)
5	2, 4	opelxpd 4697	. . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ 𝑍) → ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩ ∈ (𝑋 × 𝑌))
6		eqidd 2197	. . . . 5 ⊢ (𝜑 → (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩) = (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩))
7		txlm.j	. . . . . . . 8 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋))
8		txlm.k	. . . . . . . 8 ⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑌))
9		txtopon 14582	. . . . . . . 8 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐽 ×t 𝐾) ∈ (TopOn‘(𝑋 × 𝑌)))
10	7, 8, 9	syl2anc 411	. . . . . . 7 ⊢ (𝜑 → (𝐽 ×t 𝐾) ∈ (TopOn‘(𝑋 × 𝑌)))
11		lmcn2.o	. . . . . . . . 9 ⊢ (𝜑 → 𝑂 ∈ ((𝐽 ×t 𝐾) Cn 𝑁))
12		cntop2 14522	. . . . . . . . 9 ⊢ (𝑂 ∈ ((𝐽 ×t 𝐾) Cn 𝑁) → 𝑁 ∈ Top)
13	11, 12	syl 14	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ∈ Top)
14		toptopon2 14339	. . . . . . . 8 ⊢ (𝑁 ∈ Top ↔ 𝑁 ∈ (TopOn‘∪ 𝑁))
15	13, 14	sylib 122	. . . . . . 7 ⊢ (𝜑 → 𝑁 ∈ (TopOn‘∪ 𝑁))
16		cnf2 14525	. . . . . . 7 ⊢ (((𝐽 ×t 𝐾) ∈ (TopOn‘(𝑋 × 𝑌)) ∧ 𝑁 ∈ (TopOn‘∪ 𝑁) ∧ 𝑂 ∈ ((𝐽 ×t 𝐾) Cn 𝑁)) → 𝑂:(𝑋 × 𝑌)⟶∪ 𝑁)
17	10, 15, 11, 16	syl3anc 1249	. . . . . 6 ⊢ (𝜑 → 𝑂:(𝑋 × 𝑌)⟶∪ 𝑁)
18	17	feqmptd 5617	. . . . 5 ⊢ (𝜑 → 𝑂 = (𝑥 ∈ (𝑋 × 𝑌) ↦ (𝑂‘𝑥)))
19		fveq2 5561	. . . . . 6 ⊢ (𝑥 = ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩ → (𝑂‘𝑥) = (𝑂‘⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩))
20		df-ov 5928	. . . . . 6 ⊢ ((𝐹‘𝑛)𝑂(𝐺‘𝑛)) = (𝑂‘⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩)
21	19, 20	eqtr4di 2247	. . . . 5 ⊢ (𝑥 = ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩ → (𝑂‘𝑥) = ((𝐹‘𝑛)𝑂(𝐺‘𝑛)))
22	5, 6, 18, 21	fmptco 5731	. . . 4 ⊢ (𝜑 → (𝑂 ∘ (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩)) = (𝑛 ∈ 𝑍 ↦ ((𝐹‘𝑛)𝑂(𝐺‘𝑛))))
23		lmcn2.h	. . . 4 ⊢ 𝐻 = (𝑛 ∈ 𝑍 ↦ ((𝐹‘𝑛)𝑂(𝐺‘𝑛)))
24	22, 23	eqtr4di 2247	. . 3 ⊢ (𝜑 → (𝑂 ∘ (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩)) = 𝐻)
25		lmcn2.fl	. . . . 5 ⊢ (𝜑 → 𝐹(⇝𝑡‘𝐽)𝑅)
26		lmcn2.gl	. . . . 5 ⊢ (𝜑 → 𝐺(⇝𝑡‘𝐾)𝑆)
27		txlm.z	. . . . . 6 ⊢ 𝑍 = (ℤ≥‘𝑀)
28		txlm.m	. . . . . 6 ⊢ (𝜑 → 𝑀 ∈ ℤ)
29		eqid 2196	. . . . . 6 ⊢ (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩) = (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩)
30	27, 28, 7, 8, 1, 3, 29	txlm 14599	. . . . 5 ⊢ (𝜑 → ((𝐹(⇝𝑡‘𝐽)𝑅 ∧ 𝐺(⇝𝑡‘𝐾)𝑆) ↔ (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩)(⇝𝑡‘(𝐽 ×t 𝐾))⟨𝑅, 𝑆⟩))
31	25, 26, 30	mpbi2and 945	. . . 4 ⊢ (𝜑 → (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩)(⇝𝑡‘(𝐽 ×t 𝐾))⟨𝑅, 𝑆⟩)
32	31, 11	lmcn 14571	. . 3 ⊢ (𝜑 → (𝑂 ∘ (𝑛 ∈ 𝑍 ↦ ⟨(𝐹‘𝑛), (𝐺‘𝑛)⟩))(⇝𝑡‘𝑁)(𝑂‘⟨𝑅, 𝑆⟩))
33	24, 32	eqbrtrrd 4058	. 2 ⊢ (𝜑 → 𝐻(⇝𝑡‘𝑁)(𝑂‘⟨𝑅, 𝑆⟩))
34		df-ov 5928	. 2 ⊢ (𝑅𝑂𝑆) = (𝑂‘⟨𝑅, 𝑆⟩)
35	33, 34	breqtrrdi 4076	1 ⊢ (𝜑 → 𝐻(⇝𝑡‘𝑁)(𝑅𝑂𝑆))

Syntax hints:   → wi 4   ∧ wa 104   = wceq 1364   ∈ wcel 2167  ⟨cop 3626  ∪ cuni 3840   class class class wbr 4034   ↦ cmpt 4095   × cxp 4662   ∘ ccom 4668  ⟶wf 5255  ‘cfv 5259  (class class class)co 5925  ℤcz 9343  ℤ_≥cuz 9618  Topctop 14317  TopOnctopon 14330   Cn ccn 14505  ⇝_𝑡clm 14507   ×_t ctx 14572

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 615  ax-in2 616  ax-io 710  ax-5 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-10 1519  ax-11 1520  ax-i12 1521  ax-bndl 1523  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-13 2169  ax-14 2170  ax-ext 2178  ax-coll 4149  ax-sep 4152  ax-pow 4208  ax-pr 4243  ax-un 4469  ax-setind 4574  ax-cnex 7987  ax-resscn 7988  ax-1cn 7989  ax-1re 7990  ax-icn 7991  ax-addcl 7992  ax-addrcl 7993  ax-mulcl 7994  ax-addcom 7996  ax-addass 7998  ax-distr 8000  ax-i2m1 8001  ax-0lt1 8002  ax-0id 8004  ax-rnegex 8005  ax-cnre 8007  ax-pre-ltirr 8008  ax-pre-ltwlin 8009  ax-pre-lttrn 8010  ax-pre-apti 8011  ax-pre-ltadd 8012

This theorem depends on definitions:  df-bi 117  df-dc 836  df-3or 981  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1475  df-sb 1777  df-eu 2048  df-mo 2049  df-clab 2183  df-cleq 2189  df-clel 2192  df-nfc 2328  df-ne 2368  df-nel 2463  df-ral 2480  df-rex 2481  df-reu 2482  df-rab 2484  df-v 2765  df-sbc 2990  df-csb 3085  df-dif 3159  df-un 3161  df-in 3163  df-ss 3170  df-if 3563  df-pw 3608  df-sn 3629  df-pr 3630  df-op 3632  df-uni 3841  df-int 3876  df-iun 3919  df-br 4035  df-opab 4096  df-mpt 4097  df-id 4329  df-xp 4670  df-rel 4671  df-cnv 4672  df-co 4673  df-dm 4674  df-rn 4675  df-res 4676  df-ima 4677  df-iota 5220  df-fun 5261  df-fn 5262  df-f 5263  df-f1 5264  df-fo 5265  df-f1o 5266  df-fv 5267  df-riota 5880  df-ov 5928  df-oprab 5929  df-mpo 5930  df-1st 6207  df-2nd 6208  df-map 6718  df-pm 6719  df-pnf 8080  df-mnf 8081  df-xr 8082  df-ltxr 8083  df-le 8084  df-sub 8216  df-neg 8217  df-inn 9008  df-n0 9267  df-z 9344  df-uz 9619  df-topgen 12962  df-top 14318  df-topon 14331  df-bases 14363  df-cn 14508  df-cnp 14509  df-lm 14510  df-tx 14573

This theorem is referenced by: (None)