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Mirrors > Home > MPE Home > Th. List > cssss | Structured version Visualization version GIF version |
Description: A closed subspace is a subset of the base. (Contributed by Mario Carneiro, 13-Oct-2015.) |
Ref | Expression |
---|---|
cssss.v | ⊢ 𝑉 = (Base‘𝑊) |
cssss.c | ⊢ 𝐶 = (ClSubSp‘𝑊) |
Ref | Expression |
---|---|
cssss | ⊢ (𝑆 ∈ 𝐶 → 𝑆 ⊆ 𝑉) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2734 | . . 3 ⊢ (ocv‘𝑊) = (ocv‘𝑊) | |
2 | cssss.c | . . 3 ⊢ 𝐶 = (ClSubSp‘𝑊) | |
3 | 1, 2 | cssi 21720 | . 2 ⊢ (𝑆 ∈ 𝐶 → 𝑆 = ((ocv‘𝑊)‘((ocv‘𝑊)‘𝑆))) |
4 | cssss.v | . . 3 ⊢ 𝑉 = (Base‘𝑊) | |
5 | 4, 1 | ocvss 21706 | . 2 ⊢ ((ocv‘𝑊)‘((ocv‘𝑊)‘𝑆)) ⊆ 𝑉 |
6 | 3, 5 | eqsstrdi 4057 | 1 ⊢ (𝑆 ∈ 𝐶 → 𝑆 ⊆ 𝑉) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ∈ wcel 2103 ⊆ wss 3970 ‘cfv 6572 Basecbs 17253 ocvcocv 21696 ClSubSpccss 21697 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2105 ax-9 2113 ax-10 2136 ax-11 2153 ax-12 2173 ax-ext 2705 ax-sep 5320 ax-nul 5327 ax-pow 5386 ax-pr 5450 ax-un 7766 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2726 df-clel 2813 df-nfc 2890 df-ne 2943 df-ral 3064 df-rex 3073 df-rab 3439 df-v 3484 df-dif 3973 df-un 3975 df-in 3977 df-ss 3987 df-nul 4348 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-br 5170 df-opab 5232 df-mpt 5253 df-id 5597 df-xp 5705 df-rel 5706 df-cnv 5707 df-co 5708 df-dm 5709 df-rn 5710 df-res 5711 df-ima 5712 df-iota 6524 df-fun 6574 df-fn 6575 df-f 6576 df-fv 6580 df-ov 7448 df-ocv 21699 df-css 21700 |
This theorem is referenced by: cssmre 21729 ocvpj 21755 hlhillcs 41867 |
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