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Mirrors > Home > MPE Home > Th. List > ntrss2 | Structured version Visualization version GIF version |
Description: A subset includes its interior. (Contributed by NM, 3-Oct-2007.) (Revised by Mario Carneiro, 11-Nov-2013.) |
Ref | Expression |
---|---|
clscld.1 | ⊢ 𝑋 = ∪ 𝐽 |
Ref | Expression |
---|---|
ntrss2 | ⊢ ((𝐽 ∈ Top ∧ 𝑆 ⊆ 𝑋) → ((int‘𝐽)‘𝑆) ⊆ 𝑆) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | clscld.1 | . . 3 ⊢ 𝑋 = ∪ 𝐽 | |
2 | 1 | ntrval 22168 | . 2 ⊢ ((𝐽 ∈ Top ∧ 𝑆 ⊆ 𝑋) → ((int‘𝐽)‘𝑆) = ∪ (𝐽 ∩ 𝒫 𝑆)) |
3 | inss2 4168 | . . . 4 ⊢ (𝐽 ∩ 𝒫 𝑆) ⊆ 𝒫 𝑆 | |
4 | 3 | unissi 4853 | . . 3 ⊢ ∪ (𝐽 ∩ 𝒫 𝑆) ⊆ ∪ 𝒫 𝑆 |
5 | unipw 5368 | . . 3 ⊢ ∪ 𝒫 𝑆 = 𝑆 | |
6 | 4, 5 | sseqtri 3961 | . 2 ⊢ ∪ (𝐽 ∩ 𝒫 𝑆) ⊆ 𝑆 |
7 | 2, 6 | eqsstrdi 3979 | 1 ⊢ ((𝐽 ∈ Top ∧ 𝑆 ⊆ 𝑋) → ((int‘𝐽)‘𝑆) ⊆ 𝑆) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2109 ∩ cin 3890 ⊆ wss 3891 𝒫 cpw 4538 ∪ cuni 4844 ‘cfv 6430 Topctop 22023 intcnt 22149 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-ral 3070 df-rex 3071 df-reu 3072 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4845 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-id 5488 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-top 22024 df-ntr 22152 |
This theorem is referenced by: ntrin 22193 neiint 22236 opnnei 22252 topssnei 22256 maxlp 22279 restntr 22314 iscnp4 22395 cnntri 22403 cnntr 22407 cnprest 22421 llycmpkgen2 22682 xkococnlem 22791 flimopn 23107 fclsneii 23149 fcfnei 23167 subgntr 23239 iccntr 23965 rectbntr0 23976 bcthlem5 24473 limcflf 25026 dvbss 25046 perfdvf 25048 dvreslem 25054 dvcnp2 25065 dvnres 25076 dvaddbr 25083 dvcmulf 25090 dvmptres2 25107 dvmptcmul 25109 dvmptntr 25116 dvcnvre 25164 taylthlem1 25513 taylthlem2 25514 ulmdvlem3 25542 lgamucov2 26169 ubthlem1 29211 kur14lem6 33152 cvmlift2lem12 33255 opnbnd 34493 opnregcld 34498 cldregopn 34499 dvresntr 43413 |
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