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| Mirrors > Home > HSE Home > Th. List > sh0le | Structured version Visualization version GIF version | ||
| Description: The zero subspace is the smallest subspace. (Contributed by NM, 3-Jun-2004.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| sh0le | ⊢ (𝐴 ∈ Sℋ → 0ℋ ⊆ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ch0 31912 | . 2 ⊢ 0ℋ = {0ℎ} | |
| 2 | sh0 31875 | . . 3 ⊢ (𝐴 ∈ Sℋ → 0ℎ ∈ 𝐴) | |
| 3 | 2 | snssd 4749 | . 2 ⊢ (𝐴 ∈ Sℋ → {0ℎ} ⊆ 𝐴) |
| 4 | 1, 3 | eqsstrid 3951 | 1 ⊢ (𝐴 ∈ Sℋ → 0ℋ ⊆ 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2147 ⊆ wss 3900 {csn 4588 0ℎc0v 31583 Sℋ csh 31587 0ℋc0h 31594 |
| 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 ax-sep 5255 ax-hilex 31658 |
| 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-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 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-sh 31866 df-ch0 31912 |
| This theorem is used by: ch0le 32100 shle0 32101 orthin 32105 ssjo 32106 shs0i 32108 span0 32201 |
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