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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 31881 | . 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 2147 ⊆ wss 3900 “ cima 5661 (class class class)co 7451 ↑m cmap 8885 ℕcn 12375 ⇝𝑣 chli 31586 Sℋ csh 31587 Cℋ cch 31588 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| 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 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-br 5109 df-opab 5174 df-xp 5664 df-cnv 5666 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-iota 6520 df-fv 6574 df-ov 7454 df-ch 31880 |
| This theorem is used by: chsssh 31884 chshii 31886 ch0 31887 chss 31888 choccl 31965 chjval 32011 chjcl 32016 pjhth 32052 pjhtheu 32053 pjpreeq 32057 pjpjpre 32078 ch0le 32100 chle0 32102 chslej 32157 chjcom 32165 chub1 32166 chlub 32168 chlej1 32169 chlej2 32170 spansnsh 32220 fh1 32277 fh2 32278 chscllem1 32296 chscllem2 32297 chscllem3 32298 chscllem4 32299 chscl 32300 pjorthi 32328 pjoi0 32376 hstoc 32881 hstnmoc 32882 ch1dle 33011 atomli 33041 chirredlem3 33051 sumdmdii 33074 |
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