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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 13299 | . . . 4 ⊢ (dist = Slot (dist‘ndx) ∧ (dist‘ndx) ∈ ℕ) | |
| 4 | 9re 9229 | . . . . . 6 ⊢ 9 ∈ ℝ | |
| 5 | 1nn 9153 | . . . . . . 7 ⊢ 1 ∈ ℕ | |
| 6 | 2nn0 9418 | . . . . . . 7 ⊢ 2 ∈ ℕ0 | |
| 7 | 9nn0 9425 | . . . . . . 7 ⊢ 9 ∈ ℕ0 | |
| 8 | 9lt10 9740 | . . . . . . 7 ⊢ 9 < ;10 | |
| 9 | 5, 6, 7, 8 | declti 9647 | . . . . . 6 ⊢ 9 < ;12 |
| 10 | 4, 9 | gtneii 8274 | . . . . 5 ⊢ ;12 ≠ 9 |
| 11 | dsndx 13297 | . . . . . 6 ⊢ (dist‘ndx) = ;12 | |
| 12 | tsetndx 13268 | . . . . . 6 ⊢ (TopSet‘ndx) = 9 | |
| 13 | 11, 12 | neeq12i 2419 | . . . . 5 ⊢ ((dist‘ndx) ≠ (TopSet‘ndx) ↔ ;12 ≠ 9) |
| 14 | 10, 13 | mpbir 146 | . . . 4 ⊢ (dist‘ndx) ≠ (TopSet‘ndx) |
| 15 | tsetslid 13270 | . . . . 5 ⊢ (TopSet = Slot (TopSet‘ndx) ∧ (TopSet‘ndx) ∈ ℕ) | |
| 16 | 15 | simpri 113 | . . . 4 ⊢ (TopSet‘ndx) ∈ ℕ |
| 17 | 3, 14, 16 | setsslnid 13133 | . . 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 5643 | . 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 1397 ∈ wcel 2202 ≠ wne 2402 〈cop 3672 × cxp 4723 ↾ cres 4727 ‘cfv 5326 (class class class)co 6017 1c1 8032 ℕcn 9142 2c2 9193 9c9 9200 ;cdc 9610 ndxcnx 13078 sSet csts 13079 Slot cslot 13080 Basecbs 13081 TopSetcts 13165 distcds 13168 MetOpencmopn 14554 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8122 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-mulrcl 8130 ax-addcom 8131 ax-mulcom 8132 ax-addass 8133 ax-mulass 8134 ax-distr 8135 ax-i2m1 8136 ax-0lt1 8137 ax-1rid 8138 ax-0id 8139 ax-rnegex 8140 ax-precex 8141 ax-cnre 8142 ax-pre-ltirr 8143 ax-pre-ltwlin 8144 ax-pre-lttrn 8145 ax-pre-ltadd 8147 ax-pre-mulgt0 8148 |
| This theorem depends on definitions: df-bi 117 df-3or 1005 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-nul 3495 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-iota 5286 df-fun 5328 df-fv 5334 df-riota 5970 df-ov 6020 df-oprab 6021 df-mpo 6022 df-pnf 8215 df-mnf 8216 df-xr 8217 df-ltxr 8218 df-le 8219 df-sub 8351 df-neg 8352 df-inn 9143 df-2 9201 df-3 9202 df-4 9203 df-5 9204 df-6 9205 df-7 9206 df-8 9207 df-9 9208 df-n0 9402 df-z 9479 df-dec 9611 df-ndx 13084 df-slot 13085 df-sets 13088 df-tset 13178 df-ds 13181 |
| This theorem is referenced by: (None) |
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