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Theorem tmslem 23086

Description: Lemma for tmsbas 23087, tmsds 23088, and tmstopn 23089. (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 6696	. . . 4 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑋 ∈ dom ∞Met)
2		tmsval.m	. . . . 5 ⊢ 𝑀 = {⟨(Base‘ndx), 𝑋⟩, ⟨(dist‘ndx), 𝐷⟩}
3		df-ds 16581	. . . . 5 ⊢ dist = Slot ;12
4		1nn 11643	. . . . . 6 ⊢ 1 ∈ ℕ
5		2nn0 11908	. . . . . 6 ⊢ 2 ∈ ℕ₀
6		1nn0 11907	. . . . . 6 ⊢ 1 ∈ ℕ₀
7		1lt10 12231	. . . . . 6 ⊢ 1 < ;10
8	4, 5, 6, 7	declti 12130	. . . . 5 ⊢ 1 < ;12
9		2nn 11704	. . . . . 6 ⊢ 2 ∈ ℕ
10	6, 9	decnncl 12112	. . . . 5 ⊢ ;12 ∈ ℕ
11	2, 3, 8, 10	2strbas 16597	. . . 4 ⊢ (𝑋 ∈ dom ∞Met → 𝑋 = (Base‘𝑀))
12	1, 11	syl 17	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑋 = (Base‘𝑀))
13		xmetf 22933	. . . . 5 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷:(𝑋 × 𝑋)⟶ℝ^*)
14		ffn 6508	. . . . 5 ⊢ (𝐷:(𝑋 × 𝑋)⟶ℝ^* → 𝐷 Fn (𝑋 × 𝑋))
15		fnresdm 6460	. . . . 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 16598	. . . . 5 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷 = (dist‘𝑀))
18	17	reseq1d 5846	. . . 4 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (𝐷 ↾ (𝑋 × 𝑋)) = ((dist‘𝑀) ↾ (𝑋 × 𝑋)))
19	16, 18	eqtr3d 2858	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷 = ((dist‘𝑀) ↾ (𝑋 × 𝑋)))
20		tmsval.k	. . . 4 ⊢ 𝐾 = (toMetSp‘𝐷)
21	2, 20	tmsval 23085	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐾 = (𝑀 sSet ⟨(TopSet‘ndx), (MetOpen‘𝐷)⟩))
22	12, 19, 21	setsmsbas 23079	. 2 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑋 = (Base‘𝐾))
23	12, 19, 21	setsmsds 23080	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (dist‘𝑀) = (dist‘𝐾))
24	17, 23	eqtrd 2856	. 2 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝐷 = (dist‘𝐾))
25		prex 5324	. . . . 5 ⊢ {⟨(Base‘ndx), 𝑋⟩, ⟨(dist‘ndx), 𝐷⟩} ∈ V
26	2, 25	eqeltri 2909	. . . 4 ⊢ 𝑀 ∈ V
27	26	a1i 11	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → 𝑀 ∈ V)
28	12, 19, 21, 27	setsmstopn 23082	. 2 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (MetOpen‘𝐷) = (TopOpen‘𝐾))
29	22, 24, 28	3jca 1124	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 1083 = wceq 1533 ∈ wcel 2110 Vcvv 3494 {cpr 4562 ⟨cop 4566 × cxp 5547 dom cdm 5549 ↾ cres 5551 Fn wfn 6344 ⟶wf 6345 ‘cfv 6349 1c1 10532 ℝ^*cxr 10668 2c2 11686 cdc 12092 ndxcnx 16474 Basecbs 16477 distcds 16568 TopOpenctopn 16689 ∞Metcxmet 20524 MetOpencmopn 20529 toMetSpctms 22923

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-rep 5182 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-cnex 10587 ax-resscn 10588 ax-1cn 10589 ax-icn 10590 ax-addcl 10591 ax-addrcl 10592 ax-mulcl 10593 ax-mulrcl 10594 ax-mulcom 10595 ax-addass 10596 ax-mulass 10597 ax-distr 10598 ax-i2m1 10599 ax-1ne0 10600 ax-1rid 10601 ax-rnegex 10602 ax-rrecex 10603 ax-cnre 10604 ax-pre-lttri 10605 ax-pre-lttrn 10606 ax-pre-ltadd 10607 ax-pre-mulgt0 10608 ax-pre-sup 10609

This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-pss 3953 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-tp 4565 df-op 4567 df-uni 4832 df-int 4869 df-iun 4913 df-br 5059 df-opab 5121 df-mpt 5139 df-tr 5165 df-id 5454 df-eprel 5459 df-po 5468 df-so 5469 df-fr 5508 df-we 5510 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-pred 6142 df-ord 6188 df-on 6189 df-lim 6190 df-suc 6191 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-om 7575 df-1st 7683 df-2nd 7684 df-wrecs 7941 df-recs 8002 df-rdg 8040 df-1o 8096 df-oadd 8100 df-er 8283 df-map 8402 df-en 8504 df-dom 8505 df-sdom 8506 df-fin 8507 df-sup 8900 df-inf 8901 df-pnf 10671 df-mnf 10672 df-xr 10673 df-ltxr 10674 df-le 10675 df-sub 10866 df-neg 10867 df-div 11292 df-nn 11633 df-2 11694 df-3 11695 df-4 11696 df-5 11697 df-6 11698 df-7 11699 df-8 11700 df-9 11701 df-n0 11892 df-z 11976 df-dec 12093 df-uz 12238 df-q 12343 df-rp 12384 df-xneg 12501 df-xadd 12502 df-xmul 12503 df-fz 12887 df-struct 16479 df-ndx 16480 df-slot 16481 df-base 16483 df-sets 16484 df-tset 16578 df-ds 16581 df-rest 16690 df-topn 16691 df-topgen 16711 df-psmet 20531 df-xmet 20532 df-bl 20534 df-mopn 20535 df-top 21496 df-topon 21513 df-bases 21548 df-tms 22926

This theorem is referenced by: tmsbas 23087 tmsds 23088 tmstopn 23089

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