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Theorem hfmval 29779
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.)
Assertion
Ref Expression
hfmval ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ ∧ 𝐵 ∈ ℋ) → ((𝐴 ·fn 𝑇)‘𝐵) = (𝐴 · (𝑇𝐵)))

Proof of Theorem hfmval
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 hfmmval 29774 . . . 4 ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) → (𝐴 ·fn 𝑇) = (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇𝑥))))
21fveq1d 6697 . . 3 ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) → ((𝐴 ·fn 𝑇)‘𝐵) = ((𝑥 ∈ ℋ ↦ (𝐴 · (𝑇𝑥)))‘𝐵))
3 fveq2 6695 . . . . 5 (𝑥 = 𝐵 → (𝑇𝑥) = (𝑇𝐵))
43oveq2d 7207 . . . 4 (𝑥 = 𝐵 → (𝐴 · (𝑇𝑥)) = (𝐴 · (𝑇𝐵)))
5 eqid 2736 . . . 4 (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇𝑥))) = (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇𝑥)))
6 ovex 7224 . . . 4 (𝐴 · (𝑇𝐵)) ∈ V
74, 5, 6fvmpt 6796 . . 3 (𝐵 ∈ ℋ → ((𝑥 ∈ ℋ ↦ (𝐴 · (𝑇𝑥)))‘𝐵) = (𝐴 · (𝑇𝐵)))
82, 7sylan9eq 2791 . 2 (((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) ∧ 𝐵 ∈ ℋ) → ((𝐴 ·fn 𝑇)‘𝐵) = (𝐴 · (𝑇𝐵)))
983impa 1112 1 ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ ∧ 𝐵 ∈ ℋ) → ((𝐴 ·fn 𝑇)‘𝐵) = (𝐴 · (𝑇𝐵)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 399  w3a 1089   = wceq 1543  wcel 2112  cmpt 5120  wf 6354  cfv 6358  (class class class)co 7191  cc 10692   · cmul 10699  chba 28954   ·fn chft 28977
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1803  ax-4 1817  ax-5 1918  ax-6 1976  ax-7 2018  ax-8 2114  ax-9 2122  ax-10 2143  ax-11 2160  ax-12 2177  ax-ext 2708  ax-rep 5164  ax-sep 5177  ax-nul 5184  ax-pow 5243  ax-pr 5307  ax-un 7501  ax-cnex 10750  ax-hilex 29034
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 848  df-3an 1091  df-tru 1546  df-fal 1556  df-ex 1788  df-nf 1792  df-sb 2073  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2728  df-clel 2809  df-nfc 2879  df-ne 2933  df-ral 3056  df-rex 3057  df-reu 3058  df-rab 3060  df-v 3400  df-sbc 3684  df-csb 3799  df-dif 3856  df-un 3858  df-in 3860  df-ss 3870  df-nul 4224  df-if 4426  df-pw 4501  df-sn 4528  df-pr 4530  df-op 4534  df-uni 4806  df-iun 4892  df-br 5040  df-opab 5102  df-mpt 5121  df-id 5440  df-xp 5542  df-rel 5543  df-cnv 5544  df-co 5545  df-dm 5546  df-rn 5547  df-res 5548  df-ima 5549  df-iota 6316  df-fun 6360  df-fn 6361  df-f 6362  df-f1 6363  df-fo 6364  df-f1o 6365  df-fv 6366  df-ov 7194  df-oprab 7195  df-mpo 7196  df-map 8488  df-hfmul 29769
This theorem is referenced by:  kbass2  30152  kbass3  30153
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