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Mirrors > Home > MPE Home > Th. List > restid | Structured version Visualization version GIF version |
Description: The subspace topology of the base set is the original topology. (Contributed by Jeff Hankins, 9-Jul-2009.) (Revised by Mario Carneiro, 13-Aug-2015.) |
Ref | Expression |
---|---|
restid.1 | ⊢ 𝑋 = ∪ 𝐽 |
Ref | Expression |
---|---|
restid | ⊢ (𝐽 ∈ 𝑉 → (𝐽 ↾t 𝑋) = 𝐽) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | restid.1 | . . 3 ⊢ 𝑋 = ∪ 𝐽 | |
2 | uniexg 6955 | . . 3 ⊢ (𝐽 ∈ 𝑉 → ∪ 𝐽 ∈ V) | |
3 | 1, 2 | syl5eqel 2705 | . 2 ⊢ (𝐽 ∈ 𝑉 → 𝑋 ∈ V) |
4 | 1 | eqimss2i 3660 | . . 3 ⊢ ∪ 𝐽 ⊆ 𝑋 |
5 | sspwuni 4611 | . . 3 ⊢ (𝐽 ⊆ 𝒫 𝑋 ↔ ∪ 𝐽 ⊆ 𝑋) | |
6 | 4, 5 | mpbir 221 | . 2 ⊢ 𝐽 ⊆ 𝒫 𝑋 |
7 | restid2 16091 | . 2 ⊢ ((𝑋 ∈ V ∧ 𝐽 ⊆ 𝒫 𝑋) → (𝐽 ↾t 𝑋) = 𝐽) | |
8 | 3, 6, 7 | sylancl 694 | 1 ⊢ (𝐽 ∈ 𝑉 → (𝐽 ↾t 𝑋) = 𝐽) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1483 ∈ wcel 1990 Vcvv 3200 ⊆ wss 3574 𝒫 cpw 4158 ∪ cuni 4436 (class class class)co 6650 ↾t crest 16081 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-rest 16083 |
This theorem is referenced by: restin 20970 cnrmnrm 21165 cmpkgen 21354 xkopt 21458 xkoinjcn 21490 ussid 22064 tuslem 22071 cnperf 22623 retopconn 22632 cncfcn1 22713 cncfmpt2f 22717 cdivcncf 22720 abscncfALT 22723 cnmpt2pc 22727 cnrehmeo 22752 cnlimc 23652 recnperf 23669 dvidlem 23679 dvcnp2 23683 dvcn 23684 dvnres 23694 dvaddbr 23701 dvmulbr 23702 dvcobr 23709 dvcjbr 23712 dvrec 23718 dvexp3 23741 dveflem 23742 dvlipcn 23757 lhop1lem 23776 ftc1cn 23806 dvply1 24039 dvtaylp 24124 taylthlem2 24128 psercn 24180 pserdvlem2 24182 pserdv 24183 abelth 24195 logcn 24393 dvloglem 24394 dvlog 24397 dvlog2 24399 efopnlem2 24403 logtayl 24406 cxpcn 24486 cxpcn2 24487 cxpcn3 24489 resqrtcn 24490 sqrtcn 24491 dvatan 24662 ftalem3 24801 cxpcncf1 30673 retopsconn 31231 ivthALT 32330 knoppcnlem10 32492 knoppcnlem11 32493 dvtan 33460 ftc1cnnc 33484 dvasin 33496 dvacos 33497 binomcxplemdvbinom 38552 binomcxplemnotnn0 38555 fsumcncf 40091 ioccncflimc 40098 cncfuni 40099 icocncflimc 40102 cncfiooicclem1 40106 cxpcncf2 40113 itgsubsticclem 40191 dirkercncflem2 40321 dirkercncflem4 40323 fourierdlem32 40356 fourierdlem33 40357 fourierdlem62 40385 fourierdlem93 40416 fourierdlem101 40424 |
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