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| Description: Value of the scalar product with a Hilbert space functional. (Contributed by NM, 23-May-2006.) (Revised by Mario Carneiro, 16-Nov-2013.) (New usage is discouraged.) | 
| Ref | Expression | 
|---|---|
| hfmval | ⊢ ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ ∧ 𝐵 ∈ ℋ) → ((𝐴 ·fn 𝑇)‘𝐵) = (𝐴 · (𝑇‘𝐵))) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | hfmmval 31758 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) → (𝐴 ·fn 𝑇) = (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥)))) | |
| 2 | 1 | fveq1d 6908 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) → ((𝐴 ·fn 𝑇)‘𝐵) = ((𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥)))‘𝐵)) | 
| 3 | fveq2 6906 | . . . . 5 ⊢ (𝑥 = 𝐵 → (𝑇‘𝑥) = (𝑇‘𝐵)) | |
| 4 | 3 | oveq2d 7447 | . . . 4 ⊢ (𝑥 = 𝐵 → (𝐴 · (𝑇‘𝑥)) = (𝐴 · (𝑇‘𝐵))) | 
| 5 | eqid 2737 | . . . 4 ⊢ (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥))) = (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥))) | |
| 6 | ovex 7464 | . . . 4 ⊢ (𝐴 · (𝑇‘𝐵)) ∈ V | |
| 7 | 4, 5, 6 | fvmpt 7016 | . . 3 ⊢ (𝐵 ∈ ℋ → ((𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥)))‘𝐵) = (𝐴 · (𝑇‘𝐵))) | 
| 8 | 2, 7 | sylan9eq 2797 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) ∧ 𝐵 ∈ ℋ) → ((𝐴 ·fn 𝑇)‘𝐵) = (𝐴 · (𝑇‘𝐵))) | 
| 9 | 8 | 3impa 1110 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ ∧ 𝐵 ∈ ℋ) → ((𝐴 ·fn 𝑇)‘𝐵) = (𝐴 · (𝑇‘𝐵))) | 
| Colors of variables: wff setvar class | 
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1540 ∈ wcel 2108 ↦ cmpt 5225 ⟶wf 6557 ‘cfv 6561 (class class class)co 7431 ℂcc 11153 · cmul 11160 ℋchba 30938 ·fn chft 30961 | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2708 ax-rep 5279 ax-sep 5296 ax-nul 5306 ax-pow 5365 ax-pr 5432 ax-un 7755 ax-cnex 11211 ax-hilex 31018 | 
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2540 df-eu 2569 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2892 df-ne 2941 df-ral 3062 df-rex 3071 df-reu 3381 df-rab 3437 df-v 3482 df-sbc 3789 df-csb 3900 df-dif 3954 df-un 3956 df-in 3958 df-ss 3968 df-nul 4334 df-if 4526 df-pw 4602 df-sn 4627 df-pr 4629 df-op 4633 df-uni 4908 df-iun 4993 df-br 5144 df-opab 5206 df-mpt 5226 df-id 5578 df-xp 5691 df-rel 5692 df-cnv 5693 df-co 5694 df-dm 5695 df-rn 5696 df-res 5697 df-ima 5698 df-iota 6514 df-fun 6563 df-fn 6564 df-f 6565 df-f1 6566 df-fo 6567 df-f1o 6568 df-fv 6569 df-ov 7434 df-oprab 7435 df-mpo 7436 df-map 8868 df-hfmul 31753 | 
| This theorem is referenced by: kbass2 32136 kbass3 32137 | 
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