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| Mirrors > Home > HSE Home > Th. List > shsubcl | Structured version Visualization version GIF version | ||
| Description: Closure of vector subtraction in a subspace of a Hilbert space. (Contributed by NM, 18-Oct-1999.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shsubcl | ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 −ℎ 𝐵) ∈ 𝐻) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | shss 31573 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → 𝐻 ⊆ ℋ) | |
| 2 | 1 | sseld 3935 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ 𝐻 → 𝐴 ∈ ℋ)) |
| 3 | 1 | sseld 3935 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (𝐵 ∈ 𝐻 → 𝐵 ∈ ℋ)) |
| 4 | 2, 3 | anim12d 620 | . . . 4 ⊢ (𝐻 ∈ Sℋ → ((𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ))) |
| 5 | 4 | 3impib 1133 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ)) |
| 6 | hvsubval 31379 | . . 3 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐴 −ℎ 𝐵) = (𝐴 +ℎ (-1 ·ℎ 𝐵))) | |
| 7 | 5, 6 | syl 18 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 −ℎ 𝐵) = (𝐴 +ℎ (-1 ·ℎ 𝐵))) |
| 8 | neg1cn 12209 | . . . . 5 ⊢ -1 ∈ ℂ | |
| 9 | shmulcl 31581 | . . . . 5 ⊢ ((𝐻 ∈ Sℋ ∧ -1 ∈ ℂ ∧ 𝐵 ∈ 𝐻) → (-1 ·ℎ 𝐵) ∈ 𝐻) | |
| 10 | 8, 9 | mp3an2 1477 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐵 ∈ 𝐻) → (-1 ·ℎ 𝐵) ∈ 𝐻) |
| 11 | 10 | 3adant2 1148 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (-1 ·ℎ 𝐵) ∈ 𝐻) |
| 12 | shaddcl 31580 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ (-1 ·ℎ 𝐵) ∈ 𝐻) → (𝐴 +ℎ (-1 ·ℎ 𝐵)) ∈ 𝐻) | |
| 13 | 11, 12 | syld3an3 1435 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 +ℎ (-1 ·ℎ 𝐵)) ∈ 𝐻) |
| 14 | 7, 13 | eqeltrd 2862 | 1 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 −ℎ 𝐵) ∈ 𝐻) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 400 ∧ w3a 1102 = wceq 1569 ∈ wcel 2142 (class class class)co 7412 ℂcc 11104 1c1 11107 -cneg 11448 ℋchba 31282 +ℎ cva 31283 ·ℎ csm 31284 −ℎ cmv 31288 Sℋ csh 31291 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-hilex 31362 ax-hfvadd 31363 ax-hfvmul 31368 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1103 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3369 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-id 5555 df-po 5568 df-so 5569 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-er 8692 df-en 8942 df-dom 8943 df-sdom 8944 df-pnf 11251 df-mnf 11252 df-ltxr 11254 df-sub 11449 df-neg 11450 df-hvsub 31334 df-sh 31570 |
| This theorem is used by: hhssmetdval 31640 shuni 31663 shsvs 31686 omlsilem 31765 pjoc1i 31794 chscllem2 32001 sumspansn 32012 spansncvi 32015 pjss2i 32043 pjssmii 32044 pjocini 32061 sumdmdii 32778 cdjreui 32795 |
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