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| Mirrors > Home > HSE Home > Th. List > honegneg | Structured version Visualization version GIF version | ||
| Description: Double negative of a Hilbert space operator. (Contributed by NM, 24-Aug-2006.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| honegneg | ⊢ (𝑇: ℋ⟶ ℋ → (-1 ·op (-1 ·op 𝑇)) = 𝑇) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | neg1mulneg1e1 12461 | . . 3 ⊢ (-1 · -1) = 1 | |
| 2 | 1 | oveq1i 7423 | . 2 ⊢ ((-1 · -1) ·op 𝑇) = (1 ·op 𝑇) |
| 3 | neg1cn 12362 | . . 3 ⊢ -1 ∈ ℂ | |
| 4 | homulass 31749 | . . 3 ⊢ ((-1 ∈ ℂ ∧ -1 ∈ ℂ ∧ 𝑇: ℋ⟶ ℋ) → ((-1 · -1) ·op 𝑇) = (-1 ·op (-1 ·op 𝑇))) | |
| 5 | 3, 3, 4 | mp3an12 1452 | . 2 ⊢ (𝑇: ℋ⟶ ℋ → ((-1 · -1) ·op 𝑇) = (-1 ·op (-1 ·op 𝑇))) |
| 6 | homullid 31747 | . 2 ⊢ (𝑇: ℋ⟶ ℋ → (1 ·op 𝑇) = 𝑇) | |
| 7 | 2, 5, 6 | 3eqtr3a 2793 | 1 ⊢ (𝑇: ℋ⟶ ℋ → (-1 ·op (-1 ·op 𝑇)) = 𝑇) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2107 ⟶wf 6537 (class class class)co 7413 ℂcc 11135 1c1 11138 · cmul 11142 -cneg 11475 ℋchba 30866 ·op chot 30886 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2706 ax-rep 5259 ax-sep 5276 ax-nul 5286 ax-pow 5345 ax-pr 5412 ax-un 7737 ax-resscn 11194 ax-1cn 11195 ax-icn 11196 ax-addcl 11197 ax-addrcl 11198 ax-mulcl 11199 ax-mulrcl 11200 ax-mulcom 11201 ax-addass 11202 ax-mulass 11203 ax-distr 11204 ax-i2m1 11205 ax-1ne0 11206 ax-1rid 11207 ax-rnegex 11208 ax-rrecex 11209 ax-cnre 11210 ax-pre-lttri 11211 ax-pre-lttrn 11212 ax-pre-ltadd 11213 ax-hilex 30946 ax-hfvmul 30952 ax-hvmulid 30953 ax-hvmulass 30954 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2808 df-nfc 2884 df-ne 2932 df-nel 3036 df-ral 3051 df-rex 3060 df-reu 3364 df-rab 3420 df-v 3465 df-sbc 3771 df-csb 3880 df-dif 3934 df-un 3936 df-in 3938 df-ss 3948 df-nul 4314 df-if 4506 df-pw 4582 df-sn 4607 df-pr 4609 df-op 4613 df-uni 4888 df-iun 4973 df-br 5124 df-opab 5186 df-mpt 5206 df-id 5558 df-po 5572 df-so 5573 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-iota 6494 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-er 8727 df-map 8850 df-en 8968 df-dom 8969 df-sdom 8970 df-pnf 11279 df-mnf 11280 df-ltxr 11282 df-sub 11476 df-neg 11477 df-homul 31678 |
| This theorem is referenced by: hosubneg 31754 honegsubdi 31757 |
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