| Hilbert Space Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > HSE Home > Th. List > shsel1 | Structured version Visualization version GIF version | ||
| Description: A subspace sum contains a member of one of its subspaces. (Contributed by NM, 15-Dec-2004.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shsel1 | ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐶 ∈ 𝐴 → 𝐶 ∈ (𝐴 +ℋ 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | shel 31840 | . . . . 5 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐶 ∈ 𝐴) → 𝐶 ∈ ℋ) | |
| 2 | ax-hvaddid 31633 | . . . . 5 ⊢ (𝐶 ∈ ℋ → (𝐶 +ℎ 0ℎ) = 𝐶) | |
| 3 | 1, 2 | syl 18 | . . . 4 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐶 ∈ 𝐴) → (𝐶 +ℎ 0ℎ) = 𝐶) |
| 4 | 3 | adantlr 728 | . . 3 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) ∧ 𝐶 ∈ 𝐴) → (𝐶 +ℎ 0ℎ) = 𝐶) |
| 5 | sh0 31845 | . . . . . 6 ⊢ (𝐵 ∈ Sℋ → 0ℎ ∈ 𝐵) | |
| 6 | 5 | adantl 487 | . . . . 5 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → 0ℎ ∈ 𝐵) |
| 7 | shsva 31949 | . . . . 5 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → ((𝐶 ∈ 𝐴 ∧ 0ℎ ∈ 𝐵) → (𝐶 +ℎ 0ℎ) ∈ (𝐴 +ℋ 𝐵))) | |
| 8 | 6, 7 | mpan2d 707 | . . . 4 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐶 ∈ 𝐴 → (𝐶 +ℎ 0ℎ) ∈ (𝐴 +ℋ 𝐵))) |
| 9 | 8 | imp 412 | . . 3 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) ∧ 𝐶 ∈ 𝐴) → (𝐶 +ℎ 0ℎ) ∈ (𝐴 +ℋ 𝐵)) |
| 10 | 4, 9 | eqeltrrd 2865 | . 2 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) ∧ 𝐶 ∈ 𝐴) → 𝐶 ∈ (𝐴 +ℋ 𝐵)) |
| 11 | 10 | ex 418 | 1 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐶 ∈ 𝐴 → 𝐶 ∈ (𝐴 +ℋ 𝐵))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 (class class class)co 7440 ℋchba 31548 +ℎ cva 31549 0ℎc0v 31553 Sℋ csh 31557 +ℋ cph 31560 |
| 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-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7772 ax-resscn 11281 ax-1cn 11282 ax-icn 11283 ax-addcl 11284 ax-addrcl 11285 ax-mulcl 11286 ax-mulrcl 11287 ax-mulcom 11288 ax-addass 11289 ax-mulass 11290 ax-distr 11291 ax-i2m1 11292 ax-1ne0 11293 ax-1rid 11294 ax-rnegex 11295 ax-rrecex 11296 ax-cnre 11297 ax-pre-lttri 11298 ax-pre-lttrn 11299 ax-pre-ltadd 11300 ax-hilex 31628 ax-hfvadd 31629 ax-hvcom 31630 ax-hvass 31631 ax-hv0cl 31632 ax-hvaddid 31633 ax-hfvmul 31634 ax-hvmulid 31635 ax-hvdistr2 31638 ax-hvmul0 31639 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 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 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-riota 7397 df-ov 7443 df-oprab 7444 df-mpo 7445 df-er 8742 df-en 8999 df-dom 9000 df-sdom 9001 df-pnf 11369 df-mnf 11370 df-ltxr 11372 df-sub 11567 df-neg 11568 df-grpo 31122 df-ablo 31174 df-hvsub 31600 df-sh 31836 df-shs 31937 |
| This theorem is used by: shsel2 31951 shsvs 31952 shsub1 31953 shsel1i 31994 |
| Copyright terms: Public domain | W3C validator |