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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 13363 | . . . 4 ⊢ (dist = Slot (dist‘ndx) ∧ (dist‘ndx) ∈ ℕ) | |
| 4 | 9re 9272 | . . . . . 6 ⊢ 9 ∈ ℝ | |
| 5 | 1nn 9196 | . . . . . . 7 ⊢ 1 ∈ ℕ | |
| 6 | 2nn0 9461 | . . . . . . 7 ⊢ 2 ∈ ℕ0 | |
| 7 | 9nn0 9468 | . . . . . . 7 ⊢ 9 ∈ ℕ0 | |
| 8 | 9lt10 9785 | . . . . . . 7 ⊢ 9 < ;10 | |
| 9 | 5, 6, 7, 8 | declti 9692 | . . . . . 6 ⊢ 9 < ;12 |
| 10 | 4, 9 | gtneii 8317 | . . . . 5 ⊢ ;12 ≠ 9 |
| 11 | dsndx 13361 | . . . . . 6 ⊢ (dist‘ndx) = ;12 | |
| 12 | tsetndx 13332 | . . . . . 6 ⊢ (TopSet‘ndx) = 9 | |
| 13 | 11, 12 | neeq12i 2420 | . . . . 5 ⊢ ((dist‘ndx) ≠ (TopSet‘ndx) ↔ ;12 ≠ 9) |
| 14 | 10, 13 | mpbir 146 | . . . 4 ⊢ (dist‘ndx) ≠ (TopSet‘ndx) |
| 15 | tsetslid 13334 | . . . . 5 ⊢ (TopSet = Slot (TopSet‘ndx) ∧ (TopSet‘ndx) ∈ ℕ) | |
| 16 | 15 | simpri 113 | . . . 4 ⊢ (TopSet‘ndx) ∈ ℕ |
| 17 | 3, 14, 16 | setsslnid 13197 | . . 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 5652 | . 2 ⊢ (𝜑 → (dist‘𝐾) = (dist‘(𝑀 sSet 〈(TopSet‘ndx), (MetOpen‘𝐷)〉))) |
| 21 | 18, 20 | eqtr4d 2267 | 1 ⊢ (𝜑 → (dist‘𝑀) = (dist‘𝐾)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2202 ≠ wne 2403 〈cop 3676 × cxp 4729 ↾ cres 4733 ‘cfv 5333 (class class class)co 6028 1c1 8076 ℕcn 9185 2c2 9236 9c9 9243 ;cdc 9655 ndxcnx 13142 sSet csts 13143 Slot cslot 13144 Basecbs 13145 TopSetcts 13229 distcds 13232 MetOpencmopn 14620 |
| 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 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-cnex 8166 ax-resscn 8167 ax-1cn 8168 ax-1re 8169 ax-icn 8170 ax-addcl 8171 ax-addrcl 8172 ax-mulcl 8173 ax-mulrcl 8174 ax-addcom 8175 ax-mulcom 8176 ax-addass 8177 ax-mulass 8178 ax-distr 8179 ax-i2m1 8180 ax-0lt1 8181 ax-1rid 8182 ax-0id 8183 ax-rnegex 8184 ax-precex 8185 ax-cnre 8186 ax-pre-ltirr 8187 ax-pre-ltwlin 8188 ax-pre-lttrn 8189 ax-pre-ltadd 8191 ax-pre-mulgt0 8192 |
| 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 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-reu 2518 df-rab 2520 df-v 2805 df-sbc 3033 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-br 4094 df-opab 4156 df-mpt 4157 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-iota 5293 df-fun 5335 df-fv 5341 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-pnf 8258 df-mnf 8259 df-xr 8260 df-ltxr 8261 df-le 8262 df-sub 8394 df-neg 8395 df-inn 9186 df-2 9244 df-3 9245 df-4 9246 df-5 9247 df-6 9248 df-7 9249 df-8 9250 df-9 9251 df-n0 9445 df-z 9524 df-dec 9656 df-ndx 13148 df-slot 13149 df-sets 13152 df-tset 13242 df-ds 13245 |
| This theorem is referenced by: (None) |
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