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Theorem tmslem 22785

Description: Lemma for tmsbas 22786, tmsds 22787, and tmstopn 22788. (Contributed by Mario Carneiro, 2-Sep-2015.)

**Hypotheses**
Ref	Expression
tmsval.m	⊢ 𝑀 = {⟨(Base‘ndx), 𝑋⟩, ⟨(dist‘ndx), 𝐷⟩}
tmsval.k	⊢ 𝐾 = (toMetSp‘𝐷)

**Assertion**
Ref	Expression
tmslem	⊢ (𝐷 ∈ (∞Met‘𝑋) → (𝑋 = (Base‘𝐾) ∧ 𝐷 = (dist‘𝐾) ∧ (MetOpen‘𝐷) = (TopOpen‘𝐾)))

**Proof of Theorem tmslem**
Step	Hyp	Ref	Expression
1		elfvdm 6525	. . . 4 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑋 ∈ dom ∞Met)
2		tmsval.m	. . . . 5 ⊢ 𝑀 = {⟨(Base‘ndx), 𝑋⟩, ⟨(dist‘ndx), 𝐷⟩}
3		df-ds 16433	. . . . 5 ⊢ dist = Slot ;12
4		1nn 11444	. . . . . 6 ⊢ 1 ∈ ℕ
5		2nn0 11719	. . . . . 6 ⊢ 2 ∈ ℕ₀
6		1nn0 11718	. . . . . 6 ⊢ 1 ∈ ℕ₀
7		1lt10 12045	. . . . . 6 ⊢ 1 < ;10
8	4, 5, 6, 7	declti 11943	. . . . 5 ⊢ 1 < ;12
9		2nn 11506	. . . . . 6 ⊢ 2 ∈ ℕ
10	6, 9	decnncl 11925	. . . . 5 ⊢ ;12 ∈ ℕ
11	2, 3, 8, 10	2strbas 16449	. . . 4 ⊢ (𝑋 ∈ dom ∞Met → 𝑋 = (Base‘𝑀))
12	1, 11	syl 17	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑋 = (Base‘𝑀))
13		xmetf 22632	. . . . 5 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷:(𝑋 × 𝑋)⟶ℝ^*)
14		ffn 6338	. . . . 5 ⊢ (𝐷:(𝑋 × 𝑋)⟶ℝ^* → 𝐷 Fn (𝑋 × 𝑋))
15		fnresdm 6293	. . . . 5 ⊢ (𝐷 Fn (𝑋 × 𝑋) → (𝐷 ↾ (𝑋 × 𝑋)) = 𝐷)
16	13, 14, 15	3syl 18	. . . 4 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (𝐷 ↾ (𝑋 × 𝑋)) = 𝐷)
17	2, 3, 8, 10	2strop 16450	. . . . 5 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷 = (dist‘𝑀))
18	17	reseq1d 5687	. . . 4 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (𝐷 ↾ (𝑋 × 𝑋)) = ((dist‘𝑀) ↾ (𝑋 × 𝑋)))
19	16, 18	eqtr3d 2810	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷 = ((dist‘𝑀) ↾ (𝑋 × 𝑋)))
20		tmsval.k	. . . 4 ⊢ 𝐾 = (toMetSp‘𝐷)
21	2, 20	tmsval 22784	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐾 = (𝑀 sSet ⟨(TopSet‘ndx), (MetOpen‘𝐷)⟩))
22	12, 19, 21	setsmsbas 22778	. 2 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑋 = (Base‘𝐾))
23	12, 19, 21	setsmsds 22779	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (dist‘𝑀) = (dist‘𝐾))
24	17, 23	eqtrd 2808	. 2 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷 = (dist‘𝐾))
25		prex 5183	. . . . 5 ⊢ {⟨(Base‘ndx), 𝑋⟩, ⟨(dist‘ndx), 𝐷⟩} ∈ V
26	2, 25	eqeltri 2856	. . . 4 ⊢ 𝑀 ∈ V
27	26	a1i 11	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑀 ∈ V)
28	12, 19, 21, 27	setsmstopn 22781	. 2 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (MetOpen‘𝐷) = (TopOpen‘𝐾))
29	22, 24, 28	3jca 1108	1 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (𝑋 = (Base‘𝐾) ∧ 𝐷 = (dist‘𝐾) ∧ (MetOpen‘𝐷) = (TopOpen‘𝐾)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ w3a 1068 = wceq 1507 ∈ wcel 2048 Vcvv 3409 {cpr 4437 ⟨cop 4441 × cxp 5398 dom cdm 5400 ↾ cres 5402 Fn wfn 6177 ⟶wf 6178 ‘cfv 6182 1c1 10328 ℝ^*cxr 10465 2c2 11488 cdc 11904 ndxcnx 16326 Basecbs 16329 distcds 16420 TopOpenctopn 16541 ∞Metcxmet 20222 MetOpencmopn 20227 toMetSpctms 22622

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1758 ax-4 1772 ax-5 1869 ax-6 1928 ax-7 1964 ax-8 2050 ax-9 2057 ax-10 2077 ax-11 2091 ax-12 2104 ax-13 2299 ax-ext 2745 ax-rep 5043 ax-sep 5054 ax-nul 5061 ax-pow 5113 ax-pr 5180 ax-un 7273 ax-cnex 10383 ax-resscn 10384 ax-1cn 10385 ax-icn 10386 ax-addcl 10387 ax-addrcl 10388 ax-mulcl 10389 ax-mulrcl 10390 ax-mulcom 10391 ax-addass 10392 ax-mulass 10393 ax-distr 10394 ax-i2m1 10395 ax-1ne0 10396 ax-1rid 10397 ax-rnegex 10398 ax-rrecex 10399 ax-cnre 10400 ax-pre-lttri 10401 ax-pre-lttrn 10402 ax-pre-ltadd 10403 ax-pre-mulgt0 10404 ax-pre-sup 10405

This theorem depends on definitions: df-bi 199 df-an 388 df-or 834 df-3or 1069 df-3an 1070 df-tru 1510 df-ex 1743 df-nf 1747 df-sb 2014 df-mo 2544 df-eu 2580 df-clab 2754 df-cleq 2765 df-clel 2840 df-nfc 2912 df-ne 2962 df-nel 3068 df-ral 3087 df-rex 3088 df-reu 3089 df-rmo 3090 df-rab 3091 df-v 3411 df-sbc 3678 df-csb 3783 df-dif 3828 df-un 3830 df-in 3832 df-ss 3839 df-pss 3841 df-nul 4174 df-if 4345 df-pw 4418 df-sn 4436 df-pr 4438 df-tp 4440 df-op 4442 df-uni 4707 df-int 4744 df-iun 4788 df-br 4924 df-opab 4986 df-mpt 5003 df-tr 5025 df-id 5305 df-eprel 5310 df-po 5319 df-so 5320 df-fr 5359 df-we 5361 df-xp 5406 df-rel 5407 df-cnv 5408 df-co 5409 df-dm 5410 df-rn 5411 df-res 5412 df-ima 5413 df-pred 5980 df-ord 6026 df-on 6027 df-lim 6028 df-suc 6029 df-iota 6146 df-fun 6184 df-fn 6185 df-f 6186 df-f1 6187 df-fo 6188 df-f1o 6189 df-fv 6190 df-riota 6931 df-ov 6973 df-oprab 6974 df-mpo 6975 df-om 7391 df-1st 7494 df-2nd 7495 df-wrecs 7743 df-recs 7805 df-rdg 7843 df-1o 7897 df-oadd 7901 df-er 8081 df-map 8200 df-en 8299 df-dom 8300 df-sdom 8301 df-fin 8302 df-sup 8693 df-inf 8694 df-pnf 10468 df-mnf 10469 df-xr 10470 df-ltxr 10471 df-le 10472 df-sub 10664 df-neg 10665 df-div 11091 df-nn 11432 df-2 11496 df-3 11497 df-4 11498 df-5 11499 df-6 11500 df-7 11501 df-8 11502 df-9 11503 df-n0 11701 df-z 11787 df-dec 11905 df-uz 12052 df-q 12156 df-rp 12198 df-xneg 12317 df-xadd 12318 df-xmul 12319 df-fz 12702 df-struct 16331 df-ndx 16332 df-slot 16333 df-base 16335 df-sets 16336 df-tset 16430 df-ds 16433 df-rest 16542 df-topn 16543 df-topgen 16563 df-psmet 20229 df-xmet 20230 df-bl 20232 df-mopn 20233 df-top 21196 df-topon 21213 df-bases 21248 df-tms 22625

This theorem is referenced by: tmsbas 22786 tmsds 22787 tmstopn 22788

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