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| Mirrors > Home > ILE Home > Th. List > setsmsdsg | GIF version | ||
| Description: The distance function of a constructed metric space. (Contributed by Mario Carneiro, 28-Aug-2015.) |
| Ref | Expression |
|---|---|
| setsms.x | ⊢ (𝜑 → 𝑋 = (Base‘𝑀)) |
| setsms.d | ⊢ (𝜑 → 𝐷 = ((dist‘𝑀) ↾ (𝑋 × 𝑋))) |
| setsms.k | ⊢ (𝜑 → 𝐾 = (𝑀 sSet 〈(TopSet‘ndx), (MetOpen‘𝐷)〉)) |
| setsmsbasg.m | ⊢ (𝜑 → 𝑀 ∈ 𝑉) |
| setsmsbasg.d | ⊢ (𝜑 → (MetOpen‘𝐷) ∈ 𝑊) |
| Ref | Expression |
|---|---|
| setsmsdsg | ⊢ (𝜑 → (dist‘𝑀) = (dist‘𝐾)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | setsmsbasg.m | . . 3 ⊢ (𝜑 → 𝑀 ∈ 𝑉) | |
| 2 | setsmsbasg.d | . . 3 ⊢ (𝜑 → (MetOpen‘𝐷) ∈ 𝑊) | |
| 3 | dsslid 13514 | . . . 4 ⊢ (dist = Slot (dist‘ndx) ∧ (dist‘ndx) ∈ ℕ) | |
| 4 | 9re 9341 | . . . . . 6 ⊢ 9 ∈ ℝ | |
| 5 | 1nn 9265 | . . . . . . 7 ⊢ 1 ∈ ℕ | |
| 6 | 2nn0 9530 | . . . . . . 7 ⊢ 2 ∈ ℕ0 | |
| 7 | 9nn0 9537 | . . . . . . 7 ⊢ 9 ∈ ℕ0 | |
| 8 | 9lt10 9857 | . . . . . . 7 ⊢ 9 < ;10 | |
| 9 | 5, 6, 7, 8 | declti 9764 | . . . . . 6 ⊢ 9 < ;12 |
| 10 | 4, 9 | gtneii 8385 | . . . . 5 ⊢ ;12 ≠ 9 |
| 11 | dsndx 13512 | . . . . . 6 ⊢ (dist‘ndx) = ;12 | |
| 12 | tsetndx 13483 | . . . . . 6 ⊢ (TopSet‘ndx) = 9 | |
| 13 | 11, 12 | neeq12i 2431 | . . . . 5 ⊢ ((dist‘ndx) ≠ (TopSet‘ndx) ↔ ;12 ≠ 9) |
| 14 | 10, 13 | mpbir 146 | . . . 4 ⊢ (dist‘ndx) ≠ (TopSet‘ndx) |
| 15 | tsetslid 13485 | . . . . 5 ⊢ (TopSet = Slot (TopSet‘ndx) ∧ (TopSet‘ndx) ∈ ℕ) | |
| 16 | 15 | simpri 113 | . . . 4 ⊢ (TopSet‘ndx) ∈ ℕ |
| 17 | 3, 14, 16 | setsslnid 13348 | . . 3 ⊢ ((𝑀 ∈ 𝑉 ∧ (MetOpen‘𝐷) ∈ 𝑊) → (dist‘𝑀) = (dist‘(𝑀 sSet 〈(TopSet‘ndx), (MetOpen‘𝐷)〉))) |
| 18 | 1, 2, 17 | syl2anc 411 | . 2 ⊢ (𝜑 → (dist‘𝑀) = (dist‘(𝑀 sSet 〈(TopSet‘ndx), (MetOpen‘𝐷)〉))) |
| 19 | setsms.k | . . 3 ⊢ (𝜑 → 𝐾 = (𝑀 sSet 〈(TopSet‘ndx), (MetOpen‘𝐷)〉)) | |
| 20 | 19 | fveq2d 5679 | . 2 ⊢ (𝜑 → (dist‘𝐾) = (dist‘(𝑀 sSet 〈(TopSet‘ndx), (MetOpen‘𝐷)〉))) |
| 21 | 18, 20 | eqtr4d 2270 | 1 ⊢ (𝜑 → (dist‘𝑀) = (dist‘𝐾)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2205 ≠ wne 2414 〈cop 3697 × cxp 4752 ↾ cres 4756 ‘cfv 5357 (class class class)co 6058 1c1 8144 ℕcn 9254 2c2 9305 9c9 9312 ;cdc 9727 ndxcnx 13293 sSet csts 13294 Slot cslot 13295 Basecbs 13296 TopSetcts 13380 distcds 13383 MetOpencmopn 14815 |
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-setind 4664 ax-cnex 8234 ax-resscn 8235 ax-1cn 8236 ax-1re 8237 ax-icn 8238 ax-addcl 8239 ax-addrcl 8240 ax-mulcl 8241 ax-mulrcl 8242 ax-addcom 8243 ax-mulcom 8244 ax-addass 8245 ax-mulass 8246 ax-distr 8247 ax-i2m1 8248 ax-0lt1 8249 ax-1rid 8250 ax-0id 8251 ax-rnegex 8252 ax-precex 8253 ax-cnre 8254 ax-pre-ltirr 8255 ax-pre-ltwlin 8256 ax-pre-lttrn 8257 ax-pre-ltadd 8259 ax-pre-mulgt0 8260 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-nel 2510 df-ral 2527 df-rex 2528 df-reu 2529 df-rab 2531 df-v 2817 df-sbc 3046 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-nul 3513 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-int 3955 df-br 4115 df-opab 4177 df-mpt 4178 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-res 4766 df-iota 5317 df-fun 5359 df-fv 5365 df-riota 6011 df-ov 6061 df-oprab 6062 df-mpo 6063 df-pnf 8326 df-mnf 8327 df-xr 8328 df-ltxr 8329 df-le 8330 df-sub 8462 df-neg 8463 df-inn 9255 df-2 9313 df-3 9314 df-4 9315 df-5 9316 df-6 9317 df-7 9318 df-8 9319 df-9 9320 df-n0 9514 df-z 9595 df-dec 9728 df-ndx 13299 df-slot 13300 df-sets 13303 df-tset 13393 df-ds 13396 |
| This theorem is referenced by: (None) |
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