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| Mirrors > Home > HSE Home > Th. List > chsh | Structured version Visualization version GIF version | ||
| Description: A closed subspace is a subspace. (Contributed by NM, 19-Oct-1999.) (Revised by Mario Carneiro, 23-Dec-2013.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| chsh | ⊢ (𝐻 ∈ Cℋ → 𝐻 ∈ Sℋ ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isch 31704 | . 2 ⊢ (𝐻 ∈ Cℋ ↔ (𝐻 ∈ Sℋ ∧ ( ⇝𝑣 “ (𝐻 ↑m ℕ)) ⊆ 𝐻)) | |
| 2 | 1 | simplbi 502 | 1 ⊢ (𝐻 ∈ Cℋ → 𝐻 ∈ Sℋ ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 ⊆ wss 3899 “ cima 5658 (class class class)co 7414 ↑m cmap 8827 ℕcn 12258 ⇝𝑣 chli 31409 Sℋ csh 31410 Cℋ cch 31411 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-xp 5661 df-cnv 5663 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6489 df-fv 6541 df-ov 7417 df-ch 31703 |
| This theorem is used by: chsssh 31707 chshii 31709 ch0 31710 chss 31711 choccl 31788 chjval 31834 chjcl 31839 pjhth 31875 pjhtheu 31876 pjpreeq 31880 pjpjpre 31901 ch0le 31923 chle0 31925 chslej 31980 chjcom 31988 chub1 31989 chlub 31991 chlej1 31992 chlej2 31993 spansnsh 32043 fh1 32100 fh2 32101 chscllem1 32119 chscllem2 32120 chscllem3 32121 chscllem4 32122 chscl 32123 pjorthi 32151 pjoi0 32199 hstoc 32704 hstnmoc 32705 ch1dle 32834 atomli 32864 chirredlem3 32874 sumdmdii 32897 |
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