ismtyhmeolem - Mathbox for Jeff Madsen

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Theorem ismtyhmeolem 36975

Description: Lemma for ismtyhmeo 36976. (Contributed by Jeff Madsen, 2-Sep-2009.) (Revised by Mario Carneiro, 12-Sep-2015.)

**Hypotheses**
Ref	Expression
ismtyhmeo.1	⊢ 𝐽 = (MetOpen‘𝑀)
ismtyhmeo.2	⊢ 𝐾 = (MetOpen‘𝑁)
ismtyhmeolem.3	⊢ (𝜑 → 𝑀 ∈ (∞Met‘𝑋))
ismtyhmeolem.4	⊢ (𝜑 → 𝑁 ∈ (∞Met‘𝑌))
ismtyhmeolem.5	⊢ (𝜑 → 𝐹 ∈ (𝑀 Ismty 𝑁))

**Assertion**
Ref	Expression
ismtyhmeolem	⊢ (𝜑 → 𝐹 ∈ (𝐽 Cn 𝐾))

Proof of Theorem ismtyhmeolem Dummy variables 𝑢 𝑟 𝑤 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		ismtyhmeolem.5	. . . . 5 ⊢ (𝜑 → 𝐹 ∈ (𝑀 Ismty 𝑁))
2		ismtyhmeolem.3	. . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (∞Met‘𝑋))
3		ismtyhmeolem.4	. . . . . 6 ⊢ (𝜑 → 𝑁 ∈ (∞Met‘𝑌))
4		isismty 36972	. . . . . 6 ⊢ ((𝑀 ∈ (∞Met‘𝑋) ∧ 𝑁 ∈ (∞Met‘𝑌)) → (𝐹 ∈ (𝑀 Ismty 𝑁) ↔ (𝐹:𝑋–1-1-onto→𝑌 ∧ ∀𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝑥𝑀𝑦) = ((𝐹‘𝑥)𝑁(𝐹‘𝑦)))))
5	2, 3, 4	syl2anc 582	. . . . 5 ⊢ (𝜑 → (𝐹 ∈ (𝑀 Ismty 𝑁) ↔ (𝐹:𝑋–1-1-onto→𝑌 ∧ ∀𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝑥𝑀𝑦) = ((𝐹‘𝑥)𝑁(𝐹‘𝑦)))))
6	1, 5	mpbid 231	. . . 4 ⊢ (𝜑 → (𝐹:𝑋–1-1-onto→𝑌 ∧ ∀𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝑥𝑀𝑦) = ((𝐹‘𝑥)𝑁(𝐹‘𝑦))))
7	6	simpld 493	. . 3 ⊢ (𝜑 → 𝐹:𝑋–1-1-onto→𝑌)
8		f1of 6832	. . 3 ⊢ (𝐹:𝑋–1-1-onto→𝑌 → 𝐹:𝑋⟶𝑌)
9	7, 8	syl 17	. 2 ⊢ (𝜑 → 𝐹:𝑋⟶𝑌)
10	3	adantr 479	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → 𝑁 ∈ (∞Met‘𝑌))
11	2	adantr 479	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → 𝑀 ∈ (∞Met‘𝑋))
12		ismtycnv 36973	. . . . . . . . . 10 ⊢ ((𝑀 ∈ (∞Met‘𝑋) ∧ 𝑁 ∈ (∞Met‘𝑌)) → (𝐹 ∈ (𝑀 Ismty 𝑁) → ^◡𝐹 ∈ (𝑁 Ismty 𝑀)))
13	2, 3, 12	syl2anc 582	. . . . . . . . 9 ⊢ (𝜑 → (𝐹 ∈ (𝑀 Ismty 𝑁) → ^◡𝐹 ∈ (𝑁 Ismty 𝑀)))
14	1, 13	mpd 15	. . . . . . . 8 ⊢ (𝜑 → ^◡𝐹 ∈ (𝑁 Ismty 𝑀))
15	14	adantr 479	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → ^◡𝐹 ∈ (𝑁 Ismty 𝑀))
16		simprl 767	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → 𝑤 ∈ 𝑌)
17		simprr 769	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^)) → 𝑟 ∈ ℝ^)
18		ismtyima 36974	. . . . . . 7 ⊢ (((𝑁 ∈ (∞Met‘𝑌) ∧ 𝑀 ∈ (∞Met‘𝑋) ∧ ^◡𝐹 ∈ (𝑁 Ismty 𝑀)) ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → (^◡𝐹 “ (𝑤(ball‘𝑁)𝑟)) = ((^◡𝐹‘𝑤)(ball‘𝑀)𝑟))
19	10, 11, 15, 16, 17, 18	syl32anc 1376	. . . . . 6 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → (^◡𝐹 “ (𝑤(ball‘𝑁)𝑟)) = ((^◡𝐹‘𝑤)(ball‘𝑀)𝑟))
20		f1ocnv 6844	. . . . . . . . 9 ⊢ (𝐹:𝑋–1-1-onto→𝑌 → ^◡𝐹:𝑌–1-1-onto→𝑋)
21		f1of 6832	. . . . . . . . 9 ⊢ (^◡𝐹:𝑌–1-1-onto→𝑋 → ^◡𝐹:𝑌⟶𝑋)
22	7, 20, 21	3syl 18	. . . . . . . 8 ⊢ (𝜑 → ^◡𝐹:𝑌⟶𝑋)
23		simpl 481	. . . . . . . 8 ⊢ ((𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*) → 𝑤 ∈ 𝑌)
24		ffvelcdm 7082	. . . . . . . 8 ⊢ ((^◡𝐹:𝑌⟶𝑋 ∧ 𝑤 ∈ 𝑌) → (^◡𝐹‘𝑤) ∈ 𝑋)
25	22, 23, 24	syl2an 594	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → (^◡𝐹‘𝑤) ∈ 𝑋)
26		ismtyhmeo.1	. . . . . . . 8 ⊢ 𝐽 = (MetOpen‘𝑀)
27	26	blopn 24229	. . . . . . 7 ⊢ ((𝑀 ∈ (∞Met‘𝑋) ∧ (^◡𝐹‘𝑤) ∈ 𝑋 ∧ 𝑟 ∈ ℝ^*) → ((^◡𝐹‘𝑤)(ball‘𝑀)𝑟) ∈ 𝐽)
28	11, 25, 17, 27	syl3anc 1369	. . . . . 6 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → ((^◡𝐹‘𝑤)(ball‘𝑀)𝑟) ∈ 𝐽)
29	19, 28	eqeltrd 2831	. . . . 5 ⊢ ((𝜑 ∧ (𝑤 ∈ 𝑌 ∧ 𝑟 ∈ ℝ^*)) → (^◡𝐹 “ (𝑤(ball‘𝑁)𝑟)) ∈ 𝐽)
30	29	ralrimivva 3198	. . . 4 ⊢ (𝜑 → ∀𝑤 ∈ 𝑌 ∀𝑟 ∈ ℝ^* (^◡𝐹 “ (𝑤(ball‘𝑁)𝑟)) ∈ 𝐽)
31		fveq2 6890	. . . . . . . 8 ⊢ (𝑧 = ⟨𝑤, 𝑟⟩ → ((ball‘𝑁)‘𝑧) = ((ball‘𝑁)‘⟨𝑤, 𝑟⟩))
32		df-ov 7414	. . . . . . . 8 ⊢ (𝑤(ball‘𝑁)𝑟) = ((ball‘𝑁)‘⟨𝑤, 𝑟⟩)
33	31, 32	eqtr4di 2788	. . . . . . 7 ⊢ (𝑧 = ⟨𝑤, 𝑟⟩ → ((ball‘𝑁)‘𝑧) = (𝑤(ball‘𝑁)𝑟))
34	33	imaeq2d 6058	. . . . . 6 ⊢ (𝑧 = ⟨𝑤, 𝑟⟩ → (^◡𝐹 “ ((ball‘𝑁)‘𝑧)) = (^◡𝐹 “ (𝑤(ball‘𝑁)𝑟)))
35	34	eleq1d 2816	. . . . 5 ⊢ (𝑧 = ⟨𝑤, 𝑟⟩ → ((^◡𝐹 “ ((ball‘𝑁)‘𝑧)) ∈ 𝐽 ↔ (^◡𝐹 “ (𝑤(ball‘𝑁)𝑟)) ∈ 𝐽))
36	35	ralxp 5840	. . . 4 ⊢ (∀𝑧 ∈ (𝑌 × ℝ^)(^◡𝐹 “ ((ball‘𝑁)‘𝑧)) ∈ 𝐽 ↔ ∀𝑤 ∈ 𝑌 ∀𝑟 ∈ ℝ^ (^◡𝐹 “ (𝑤(ball‘𝑁)𝑟)) ∈ 𝐽)
37	30, 36	sylibr 233	. . 3 ⊢ (𝜑 → ∀𝑧 ∈ (𝑌 × ℝ^*)(^◡𝐹 “ ((ball‘𝑁)‘𝑧)) ∈ 𝐽)
38		blf 24133	. . . 4 ⊢ (𝑁 ∈ (∞Met‘𝑌) → (ball‘𝑁):(𝑌 × ℝ^*)⟶𝒫 𝑌)
39		ffn 6716	. . . 4 ⊢ ((ball‘𝑁):(𝑌 × ℝ^)⟶𝒫 𝑌 → (ball‘𝑁) Fn (𝑌 × ℝ^))
40		imaeq2 6054	. . . . . 6 ⊢ (𝑢 = ((ball‘𝑁)‘𝑧) → (^◡𝐹 “ 𝑢) = (^◡𝐹 “ ((ball‘𝑁)‘𝑧)))
41	40	eleq1d 2816	. . . . 5 ⊢ (𝑢 = ((ball‘𝑁)‘𝑧) → ((^◡𝐹 “ 𝑢) ∈ 𝐽 ↔ (^◡𝐹 “ ((ball‘𝑁)‘𝑧)) ∈ 𝐽))
42	41	ralrn 7088	. . . 4 ⊢ ((ball‘𝑁) Fn (𝑌 × ℝ^) → (∀𝑢 ∈ ran (ball‘𝑁)(^◡𝐹 “ 𝑢) ∈ 𝐽 ↔ ∀𝑧 ∈ (𝑌 × ℝ^)(^◡𝐹 “ ((ball‘𝑁)‘𝑧)) ∈ 𝐽))
43	3, 38, 39, 42	4syl 19	. . 3 ⊢ (𝜑 → (∀𝑢 ∈ ran (ball‘𝑁)(^◡𝐹 “ 𝑢) ∈ 𝐽 ↔ ∀𝑧 ∈ (𝑌 × ℝ^*)(^◡𝐹 “ ((ball‘𝑁)‘𝑧)) ∈ 𝐽))
44	37, 43	mpbird 256	. 2 ⊢ (𝜑 → ∀𝑢 ∈ ran (ball‘𝑁)(^◡𝐹 “ 𝑢) ∈ 𝐽)
45	26	mopntopon 24165	. . . 4 ⊢ (𝑀 ∈ (∞Met‘𝑋) → 𝐽 ∈ (TopOn‘𝑋))
46	2, 45	syl 17	. . 3 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋))
47		ismtyhmeo.2	. . . . 5 ⊢ 𝐾 = (MetOpen‘𝑁)
48	47	mopnval 24164	. . . 4 ⊢ (𝑁 ∈ (∞Met‘𝑌) → 𝐾 = (topGen‘ran (ball‘𝑁)))
49	3, 48	syl 17	. . 3 ⊢ (𝜑 → 𝐾 = (topGen‘ran (ball‘𝑁)))
50	47	mopntopon 24165	. . . 4 ⊢ (𝑁 ∈ (∞Met‘𝑌) → 𝐾 ∈ (TopOn‘𝑌))
51	3, 50	syl 17	. . 3 ⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑌))
52	46, 49, 51	tgcn 22976	. 2 ⊢ (𝜑 → (𝐹 ∈ (𝐽 Cn 𝐾) ↔ (𝐹:𝑋⟶𝑌 ∧ ∀𝑢 ∈ ran (ball‘𝑁)(^◡𝐹 “ 𝑢) ∈ 𝐽)))
53	9, 44, 52	mpbir2and 709	1 ⊢ (𝜑 → 𝐹 ∈ (𝐽 Cn 𝐾))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 394 = wceq 1539 ∈ wcel 2104 ∀wral 3059 𝒫 cpw 4601 ⟨cop 4633 × cxp 5673 ^◡ccnv 5674 ran crn 5676 “ cima 5678 Fn wfn 6537 ⟶wf 6538 –1-1-onto→wf1o 6541 ‘cfv 6542 (class class class)co 7411 ℝ^*cxr 11251 topGenctg 17387 ∞Metcxmet 21129 ballcbl 21131 MetOpencmopn 21134 TopOnctopon 22632 Cn ccn 22948 Ismty cismty 36969

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2701 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7727 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189 ax-pre-sup 11190

This theorem depends on definitions: df-bi 206 df-an 395 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2532 df-eu 2561 df-clab 2708 df-cleq 2722 df-clel 2808 df-nfc 2883 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3474 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7367 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7858 df-1st 7977 df-2nd 7978 df-frecs 8268 df-wrecs 8299 df-recs 8373 df-rdg 8412 df-er 8705 df-map 8824 df-en 8942 df-dom 8943 df-sdom 8944 df-sup 9439 df-inf 9440 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-div 11876 df-nn 12217 df-2 12279 df-n0 12477 df-z 12563 df-uz 12827 df-q 12937 df-rp 12979 df-xneg 13096 df-xadd 13097 df-xmul 13098 df-topgen 17393 df-psmet 21136 df-xmet 21137 df-bl 21139 df-mopn 21140 df-top 22616 df-topon 22633 df-bases 22669 df-cn 22951 df-ismty 36970

This theorem is referenced by: ismtyhmeo 36976

W3C validator