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| Mirrors > Home > HSE Home > Th. List > hocoi | Structured version Visualization version GIF version | ||
| Description: Composition of Hilbert space operators. (Contributed by NM, 12-Nov-2000.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hoeq.1 | ⊢ 𝑆: ℋ⟶ ℋ |
| hoeq.2 | ⊢ 𝑇: ℋ⟶ ℋ |
| Ref | Expression |
|---|---|
| hocoi | ⊢ (𝐴 ∈ ℋ → ((𝑆 ∘ 𝑇)‘𝐴) = (𝑆‘(𝑇‘𝐴))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hoeq.2 | . 2 ⊢ 𝑇: ℋ⟶ ℋ | |
| 2 | fvco3 6941 | . 2 ⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝐴 ∈ ℋ) → ((𝑆 ∘ 𝑇)‘𝐴) = (𝑆‘(𝑇‘𝐴))) | |
| 3 | 1, 2 | mpan 691 | 1 ⊢ (𝐴 ∈ ℋ → ((𝑆 ∘ 𝑇)‘𝐴) = (𝑆‘(𝑇‘𝐴))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ∘ ccom 5636 ⟶wf 6496 ‘cfv 6500 ℋchba 31006 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pr 5379 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-fv 6508 |
| This theorem is referenced by: hococli 31852 hocadddiri 31866 hocsubdiri 31867 ho2coi 31868 ho0coi 31875 hoid1i 31876 hoid1ri 31877 hoddii 32076 lnopcoi 32090 lnopco0i 32091 nmopcoi 32182 adjcoi 32187 nmopcoadji 32188 hmopidmchi 32238 hmopidmpji 32239 pjsdii 32242 pjddii 32243 pjcoi 32245 pjcohocli 32290 pjadj2coi 32291 pj3lem1 32293 |
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