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Mirrors > Home > MPE Home > Th. List > xrrest | Structured version Visualization version GIF version |
Description: The subspace topology induced by a subset of the reals. (Contributed by Mario Carneiro, 9-Sep-2015.) |
Ref | Expression |
---|---|
xrrest.1 | ⊢ 𝑋 = (ordTop‘ ≤ ) |
xrrest.2 | ⊢ 𝑅 = (topGen‘ran (,)) |
Ref | Expression |
---|---|
xrrest | ⊢ (𝐴 ⊆ ℝ → (𝑋 ↾t 𝐴) = (𝑅 ↾t 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xrrest.2 | . . . 4 ⊢ 𝑅 = (topGen‘ran (,)) | |
2 | xrrest.1 | . . . . . 6 ⊢ 𝑋 = (ordTop‘ ≤ ) | |
3 | 2 | oveq1i 7441 | . . . . 5 ⊢ (𝑋 ↾t ℝ) = ((ordTop‘ ≤ ) ↾t ℝ) |
4 | 3 | xrtgioo 24842 | . . . 4 ⊢ (topGen‘ran (,)) = (𝑋 ↾t ℝ) |
5 | 1, 4 | eqtri 2763 | . . 3 ⊢ 𝑅 = (𝑋 ↾t ℝ) |
6 | 5 | oveq1i 7441 | . 2 ⊢ (𝑅 ↾t 𝐴) = ((𝑋 ↾t ℝ) ↾t 𝐴) |
7 | 2 | fvexi 6921 | . . 3 ⊢ 𝑋 ∈ V |
8 | reex 11244 | . . 3 ⊢ ℝ ∈ V | |
9 | restabs 23189 | . . 3 ⊢ ((𝑋 ∈ V ∧ 𝐴 ⊆ ℝ ∧ ℝ ∈ V) → ((𝑋 ↾t ℝ) ↾t 𝐴) = (𝑋 ↾t 𝐴)) | |
10 | 7, 8, 9 | mp3an13 1451 | . 2 ⊢ (𝐴 ⊆ ℝ → ((𝑋 ↾t ℝ) ↾t 𝐴) = (𝑋 ↾t 𝐴)) |
11 | 6, 10 | eqtr2id 2788 | 1 ⊢ (𝐴 ⊆ ℝ → (𝑋 ↾t 𝐴) = (𝑅 ↾t 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ∈ wcel 2106 Vcvv 3478 ⊆ wss 3963 ran crn 5690 ‘cfv 6563 (class class class)co 7431 ℝcr 11152 ≤ cle 11294 (,)cioo 13384 ↾t crest 17467 topGenctg 17484 ordTopcordt 17546 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1908 ax-6 1965 ax-7 2005 ax-8 2108 ax-9 2116 ax-10 2139 ax-11 2155 ax-12 2175 ax-ext 2706 ax-rep 5285 ax-sep 5302 ax-nul 5312 ax-pow 5371 ax-pr 5438 ax-un 7754 ax-cnex 11209 ax-resscn 11210 ax-1cn 11211 ax-icn 11212 ax-addcl 11213 ax-addrcl 11214 ax-mulcl 11215 ax-mulrcl 11216 ax-mulcom 11217 ax-addass 11218 ax-mulass 11219 ax-distr 11220 ax-i2m1 11221 ax-1ne0 11222 ax-1rid 11223 ax-rnegex 11224 ax-rrecex 11225 ax-cnre 11226 ax-pre-lttri 11227 ax-pre-lttrn 11228 ax-pre-ltadd 11229 ax-pre-mulgt0 11230 ax-pre-sup 11231 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1540 df-fal 1550 df-ex 1777 df-nf 1781 df-sb 2063 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2727 df-clel 2814 df-nfc 2890 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3378 df-reu 3379 df-rab 3434 df-v 3480 df-sbc 3792 df-csb 3909 df-dif 3966 df-un 3968 df-in 3970 df-ss 3980 df-pss 3983 df-nul 4340 df-if 4532 df-pw 4607 df-sn 4632 df-pr 4634 df-op 4638 df-uni 4913 df-int 4952 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5583 df-eprel 5589 df-po 5597 df-so 5598 df-fr 5641 df-we 5643 df-xp 5695 df-rel 5696 df-cnv 5697 df-co 5698 df-dm 5699 df-rn 5700 df-res 5701 df-ima 5702 df-pred 6323 df-ord 6389 df-on 6390 df-lim 6391 df-suc 6392 df-iota 6516 df-fun 6565 df-fn 6566 df-f 6567 df-f1 6568 df-fo 6569 df-f1o 6570 df-fv 6571 df-riota 7388 df-ov 7434 df-oprab 7435 df-mpo 7436 df-om 7888 df-1st 8013 df-2nd 8014 df-frecs 8305 df-wrecs 8336 df-recs 8410 df-rdg 8449 df-1o 8505 df-2o 8506 df-er 8744 df-en 8985 df-dom 8986 df-sdom 8987 df-fin 8988 df-fi 9449 df-sup 9480 df-inf 9481 df-pnf 11295 df-mnf 11296 df-xr 11297 df-ltxr 11298 df-le 11299 df-sub 11492 df-neg 11493 df-div 11919 df-nn 12265 df-n0 12525 df-z 12612 df-uz 12877 df-q 12989 df-ioo 13388 df-ioc 13389 df-ico 13390 df-icc 13391 df-rest 17469 df-topgen 17490 df-ordt 17548 df-ps 18624 df-tsr 18625 df-top 22916 df-topon 22933 df-bases 22969 |
This theorem is referenced by: xrrest2 24844 dfii5 24925 |
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