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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 13430 | . . . 4 ⊢ (dist = Slot (dist‘ndx) ∧ (dist‘ndx) ∈ ℕ) | |
| 4 | 9re 9324 | . . . . . 6 ⊢ 9 ∈ ℝ | |
| 5 | 1nn 9248 | . . . . . . 7 ⊢ 1 ∈ ℕ | |
| 6 | 2nn0 9513 | . . . . . . 7 ⊢ 2 ∈ ℕ0 | |
| 7 | 9nn0 9520 | . . . . . . 7 ⊢ 9 ∈ ℕ0 | |
| 8 | 9lt10 9839 | . . . . . . 7 ⊢ 9 < ;10 | |
| 9 | 5, 6, 7, 8 | declti 9746 | . . . . . 6 ⊢ 9 < ;12 |
| 10 | 4, 9 | gtneii 8369 | . . . . 5 ⊢ ;12 ≠ 9 |
| 11 | dsndx 13428 | . . . . . 6 ⊢ (dist‘ndx) = ;12 | |
| 12 | tsetndx 13399 | . . . . . 6 ⊢ (TopSet‘ndx) = 9 | |
| 13 | 11, 12 | neeq12i 2429 | . . . . 5 ⊢ ((dist‘ndx) ≠ (TopSet‘ndx) ↔ ;12 ≠ 9) |
| 14 | 10, 13 | mpbir 146 | . . . 4 ⊢ (dist‘ndx) ≠ (TopSet‘ndx) |
| 15 | tsetslid 13401 | . . . . 5 ⊢ (TopSet = Slot (TopSet‘ndx) ∧ (TopSet‘ndx) ∈ ℕ) | |
| 16 | 15 | simpri 113 | . . . 4 ⊢ (TopSet‘ndx) ∈ ℕ |
| 17 | 3, 14, 16 | setsslnid 13264 | . . 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 5674 | . 2 ⊢ (𝜑 → (dist‘𝐾) = (dist‘(𝑀 sSet 〈(TopSet‘ndx), (MetOpen‘𝐷)〉))) |
| 21 | 18, 20 | eqtr4d 2268 | 1 ⊢ (𝜑 → (dist‘𝑀) = (dist‘𝐾)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2203 ≠ wne 2412 〈cop 3692 × cxp 4747 ↾ cres 4751 ‘cfv 5352 (class class class)co 6050 1c1 8128 ℕcn 9237 2c2 9288 9c9 9295 ;cdc 9709 ndxcnx 13209 sSet csts 13210 Slot cslot 13211 Basecbs 13212 TopSetcts 13296 distcds 13299 MetOpencmopn 14689 |
| 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 2205 ax-14 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 ax-un 4554 ax-setind 4659 ax-cnex 8218 ax-resscn 8219 ax-1cn 8220 ax-1re 8221 ax-icn 8222 ax-addcl 8223 ax-addrcl 8224 ax-mulcl 8225 ax-mulrcl 8226 ax-addcom 8227 ax-mulcom 8228 ax-addass 8229 ax-mulass 8230 ax-distr 8231 ax-i2m1 8232 ax-0lt1 8233 ax-1rid 8234 ax-0id 8235 ax-rnegex 8236 ax-precex 8237 ax-cnre 8238 ax-pre-ltirr 8239 ax-pre-ltwlin 8240 ax-pre-lttrn 8241 ax-pre-ltadd 8243 ax-pre-mulgt0 8244 |
| 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 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-reu 2527 df-rab 2529 df-v 2815 df-sbc 3043 df-dif 3213 df-un 3215 df-in 3217 df-ss 3224 df-nul 3509 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-int 3950 df-br 4110 df-opab 4172 df-mpt 4173 df-id 4414 df-xp 4755 df-rel 4756 df-cnv 4757 df-co 4758 df-dm 4759 df-rn 4760 df-res 4761 df-iota 5312 df-fun 5354 df-fv 5360 df-riota 6003 df-ov 6053 df-oprab 6054 df-mpo 6055 df-pnf 8310 df-mnf 8311 df-xr 8312 df-ltxr 8313 df-le 8314 df-sub 8446 df-neg 8447 df-inn 9238 df-2 9296 df-3 9297 df-4 9298 df-5 9299 df-6 9300 df-7 9301 df-8 9302 df-9 9303 df-n0 9497 df-z 9578 df-dec 9710 df-ndx 13215 df-slot 13216 df-sets 13219 df-tset 13309 df-ds 13312 |
| This theorem is referenced by: (None) |
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