| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 7690 | . . 3 ⊢ (𝐽 ∈ 𝑉 → ∪ 𝐽 ∈ V) | |
| 3 | 1, 2 | eqeltrid 2844 | . 2 ⊢ (𝐽 ∈ 𝑉 → 𝑋 ∈ V) |
| 4 | 1 | eqimss2i 3983 | . . 3 ⊢ ∪ 𝐽 ⊆ 𝑋 |
| 5 | sspwuni 5036 | . . 3 ⊢ (𝐽 ⊆ 𝒫 𝑋 ↔ ∪ 𝐽 ⊆ 𝑋) | |
| 6 | 4, 5 | mpbir 232 | . 2 ⊢ 𝐽 ⊆ 𝒫 𝑋 |
| 7 | restid2 17391 | . 2 ⊢ ((𝑋 ∈ V ∧ 𝐽 ⊆ 𝒫 𝑋) → (𝐽 ↾t 𝑋) = 𝐽) | |
| 8 | 3, 6, 7 | sylancl 592 | 1 ⊢ (𝐽 ∈ 𝑉 → (𝐽 ↾t 𝑋) = 𝐽) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 Vcvv 3432 ⊆ wss 3890 𝒫 cpw 4536 ∪ cuni 4845 (class class class)co 7363 ↾t crest 17381 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2712 ax-rep 5206 ax-sep 5225 ax-nul 5235 ax-pow 5301 ax-pr 5369 ax-un 7685 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ne 2936 df-ral 3055 df-rex 3065 df-reu 3346 df-rab 3393 df-v 3434 df-sbc 3731 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-iun 4930 df-br 5080 df-opab 5142 df-mpt 5161 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7366 df-oprab 7367 df-mpo 7368 df-rest 17383 |
| This theorem is referenced by: toponrestid 22911 restin 23156 cnrmnrm 23351 cmpkgen 23541 xkopt 23645 xkoinjcn 23677 ussid 24250 tuslem 24256 cnperf 24811 retopconn 24820 abscncfALT 24916 cnmpopc 24920 recnperf 25897 lhop1lem 26005 cxpcn3 26737 retopsconn 35484 ivthALT 36570 binomcxplemdvbinom 44804 binomcxplemnotnn0 44807 fsumcncf 46328 ioccncflimc 46335 cncfuni 46336 icocncflimc 46339 cncfiooicclem1 46343 itgsubsticclem 46425 dirkercncflem2 46554 dirkercncflem4 46556 fourierdlem32 46589 fourierdlem33 46590 fourierdlem62 46618 fourierdlem93 46649 fourierdlem101 46657 |
| Copyright terms: Public domain | W3C validator |