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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 28986 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → 𝐻 ⊆ ℋ) | |
2 | 1 | sseld 3965 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ 𝐻 → 𝐴 ∈ ℋ)) |
3 | 1 | sseld 3965 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (𝐵 ∈ 𝐻 → 𝐵 ∈ ℋ)) |
4 | 2, 3 | anim12d 610 | . . . 4 ⊢ (𝐻 ∈ Sℋ → ((𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ))) |
5 | 4 | 3impib 1112 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ)) |
6 | hvsubval 28792 | . . 3 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐴 −ℎ 𝐵) = (𝐴 +ℎ (-1 ·ℎ 𝐵))) | |
7 | 5, 6 | syl 17 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 −ℎ 𝐵) = (𝐴 +ℎ (-1 ·ℎ 𝐵))) |
8 | neg1cn 11750 | . . . . 5 ⊢ -1 ∈ ℂ | |
9 | shmulcl 28994 | . . . . 5 ⊢ ((𝐻 ∈ Sℋ ∧ -1 ∈ ℂ ∧ 𝐵 ∈ 𝐻) → (-1 ·ℎ 𝐵) ∈ 𝐻) | |
10 | 8, 9 | mp3an2 1445 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐵 ∈ 𝐻) → (-1 ·ℎ 𝐵) ∈ 𝐻) |
11 | 10 | 3adant2 1127 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (-1 ·ℎ 𝐵) ∈ 𝐻) |
12 | shaddcl 28993 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ (-1 ·ℎ 𝐵) ∈ 𝐻) → (𝐴 +ℎ (-1 ·ℎ 𝐵)) ∈ 𝐻) | |
13 | 11, 12 | syld3an3 1405 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 +ℎ (-1 ·ℎ 𝐵)) ∈ 𝐻) |
14 | 7, 13 | eqeltrd 2913 | 1 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ 𝐻 ∧ 𝐵 ∈ 𝐻) → (𝐴 −ℎ 𝐵) ∈ 𝐻) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ∧ w3a 1083 = wceq 1533 ∈ wcel 2110 (class class class)co 7155 ℂcc 10534 1c1 10537 -cneg 10870 ℋchba 28695 +ℎ cva 28696 ·ℎ csm 28697 −ℎ cmv 28701 Sℋ csh 28704 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 ax-resscn 10593 ax-1cn 10594 ax-icn 10595 ax-addcl 10596 ax-addrcl 10597 ax-mulcl 10598 ax-mulrcl 10599 ax-mulcom 10600 ax-addass 10601 ax-mulass 10602 ax-distr 10603 ax-i2m1 10604 ax-1ne0 10605 ax-1rid 10606 ax-rnegex 10607 ax-rrecex 10608 ax-cnre 10609 ax-pre-lttri 10610 ax-pre-lttrn 10611 ax-pre-ltadd 10612 ax-hilex 28775 ax-hfvadd 28776 ax-hfvmul 28781 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4838 df-iun 4920 df-br 5066 df-opab 5128 df-mpt 5146 df-id 5459 df-po 5473 df-so 5474 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-ima 5567 df-iota 6313 df-fun 6356 df-fn 6357 df-f 6358 df-f1 6359 df-fo 6360 df-f1o 6361 df-fv 6362 df-riota 7113 df-ov 7158 df-oprab 7159 df-mpo 7160 df-er 8288 df-en 8509 df-dom 8510 df-sdom 8511 df-pnf 10676 df-mnf 10677 df-ltxr 10679 df-sub 10871 df-neg 10872 df-hvsub 28747 df-sh 28983 |
This theorem is referenced by: hhssmetdval 29053 shuni 29076 shsvs 29099 omlsilem 29178 pjoc1i 29207 chscllem2 29414 sumspansn 29425 spansncvi 29428 pjss2i 29456 pjssmii 29457 pjocini 29474 sumdmdii 30191 cdjreui 30208 |
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