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Mirrors > Home > ILE Home > Th. List > mspropd | GIF version |
Description: Property deduction for a metric space. (Contributed by Mario Carneiro, 4-Oct-2015.) |
Ref | Expression |
---|---|
xmspropd.1 | ⊢ (𝜑 → 𝐵 = (Base‘𝐾)) |
xmspropd.2 | ⊢ (𝜑 → 𝐵 = (Base‘𝐿)) |
xmspropd.3 | ⊢ (𝜑 → ((dist‘𝐾) ↾ (𝐵 × 𝐵)) = ((dist‘𝐿) ↾ (𝐵 × 𝐵))) |
xmspropd.4 | ⊢ (𝜑 → (TopOpen‘𝐾) = (TopOpen‘𝐿)) |
Ref | Expression |
---|---|
mspropd | ⊢ (𝜑 → (𝐾 ∈ MetSp ↔ 𝐿 ∈ MetSp)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xmspropd.1 | . . . 4 ⊢ (𝜑 → 𝐵 = (Base‘𝐾)) | |
2 | xmspropd.2 | . . . 4 ⊢ (𝜑 → 𝐵 = (Base‘𝐿)) | |
3 | xmspropd.3 | . . . 4 ⊢ (𝜑 → ((dist‘𝐾) ↾ (𝐵 × 𝐵)) = ((dist‘𝐿) ↾ (𝐵 × 𝐵))) | |
4 | xmspropd.4 | . . . 4 ⊢ (𝜑 → (TopOpen‘𝐾) = (TopOpen‘𝐿)) | |
5 | 1, 2, 3, 4 | xmspropd 13641 | . . 3 ⊢ (𝜑 → (𝐾 ∈ ∞MetSp ↔ 𝐿 ∈ ∞MetSp)) |
6 | 1 | sqxpeqd 4649 | . . . . . . 7 ⊢ (𝜑 → (𝐵 × 𝐵) = ((Base‘𝐾) × (Base‘𝐾))) |
7 | 6 | reseq2d 4903 | . . . . . 6 ⊢ (𝜑 → ((dist‘𝐾) ↾ (𝐵 × 𝐵)) = ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾)))) |
8 | 3, 7 | eqtr3d 2212 | . . . . 5 ⊢ (𝜑 → ((dist‘𝐿) ↾ (𝐵 × 𝐵)) = ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾)))) |
9 | 2 | sqxpeqd 4649 | . . . . . 6 ⊢ (𝜑 → (𝐵 × 𝐵) = ((Base‘𝐿) × (Base‘𝐿))) |
10 | 9 | reseq2d 4903 | . . . . 5 ⊢ (𝜑 → ((dist‘𝐿) ↾ (𝐵 × 𝐵)) = ((dist‘𝐿) ↾ ((Base‘𝐿) × (Base‘𝐿)))) |
11 | 8, 10 | eqtr3d 2212 | . . . 4 ⊢ (𝜑 → ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) = ((dist‘𝐿) ↾ ((Base‘𝐿) × (Base‘𝐿)))) |
12 | 1, 2 | eqtr3d 2212 | . . . . 5 ⊢ (𝜑 → (Base‘𝐾) = (Base‘𝐿)) |
13 | 12 | fveq2d 5515 | . . . 4 ⊢ (𝜑 → (Met‘(Base‘𝐾)) = (Met‘(Base‘𝐿))) |
14 | 11, 13 | eleq12d 2248 | . . 3 ⊢ (𝜑 → (((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) ∈ (Met‘(Base‘𝐾)) ↔ ((dist‘𝐿) ↾ ((Base‘𝐿) × (Base‘𝐿))) ∈ (Met‘(Base‘𝐿)))) |
15 | 5, 14 | anbi12d 473 | . 2 ⊢ (𝜑 → ((𝐾 ∈ ∞MetSp ∧ ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) ∈ (Met‘(Base‘𝐾))) ↔ (𝐿 ∈ ∞MetSp ∧ ((dist‘𝐿) ↾ ((Base‘𝐿) × (Base‘𝐿))) ∈ (Met‘(Base‘𝐿))))) |
16 | eqid 2177 | . . 3 ⊢ (TopOpen‘𝐾) = (TopOpen‘𝐾) | |
17 | eqid 2177 | . . 3 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
18 | eqid 2177 | . . 3 ⊢ ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) = ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) | |
19 | 16, 17, 18 | isms 13617 | . 2 ⊢ (𝐾 ∈ MetSp ↔ (𝐾 ∈ ∞MetSp ∧ ((dist‘𝐾) ↾ ((Base‘𝐾) × (Base‘𝐾))) ∈ (Met‘(Base‘𝐾)))) |
20 | eqid 2177 | . . 3 ⊢ (TopOpen‘𝐿) = (TopOpen‘𝐿) | |
21 | eqid 2177 | . . 3 ⊢ (Base‘𝐿) = (Base‘𝐿) | |
22 | eqid 2177 | . . 3 ⊢ ((dist‘𝐿) ↾ ((Base‘𝐿) × (Base‘𝐿))) = ((dist‘𝐿) ↾ ((Base‘𝐿) × (Base‘𝐿))) | |
23 | 20, 21, 22 | isms 13617 | . 2 ⊢ (𝐿 ∈ MetSp ↔ (𝐿 ∈ ∞MetSp ∧ ((dist‘𝐿) ↾ ((Base‘𝐿) × (Base‘𝐿))) ∈ (Met‘(Base‘𝐿)))) |
24 | 15, 19, 23 | 3bitr4g 223 | 1 ⊢ (𝜑 → (𝐾 ∈ MetSp ↔ 𝐿 ∈ MetSp)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1353 ∈ wcel 2148 × cxp 4621 ↾ cres 4625 ‘cfv 5212 Basecbs 12442 distcds 12524 TopOpenctopn 12634 Metcmet 13145 ∞MetSpcxms 13500 MetSpcms 13501 |
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 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-coll 4115 ax-sep 4118 ax-pow 4171 ax-pr 4206 ax-un 4430 ax-cnex 7890 ax-resscn 7891 ax-1re 7893 ax-addrcl 7896 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ral 2460 df-rex 2461 df-reu 2462 df-rab 2464 df-v 2739 df-sbc 2963 df-csb 3058 df-dif 3131 df-un 3133 df-in 3135 df-ss 3142 df-nul 3423 df-pw 3576 df-sn 3597 df-pr 3598 df-op 3600 df-uni 3808 df-int 3843 df-iun 3886 df-br 4001 df-opab 4062 df-mpt 4063 df-id 4290 df-xp 4629 df-rel 4630 df-cnv 4631 df-co 4632 df-dm 4633 df-rn 4634 df-res 4635 df-ima 4636 df-iota 5174 df-fun 5214 df-fn 5215 df-f 5216 df-f1 5217 df-fo 5218 df-f1o 5219 df-fv 5220 df-ov 5872 df-oprab 5873 df-mpo 5874 df-1st 6135 df-2nd 6136 df-inn 8906 df-2 8964 df-3 8965 df-4 8966 df-5 8967 df-6 8968 df-7 8969 df-8 8970 df-9 8971 df-ndx 12445 df-slot 12446 df-base 12448 df-tset 12534 df-rest 12635 df-topn 12636 df-top 13160 df-topon 13173 df-topsp 13193 df-xms 13503 df-ms 13504 |
This theorem is referenced by: (None) |
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