Theorem hfmval 29515

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 · (𝑇‘𝐵)))

Proof of Theorem hfmval

Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		hfmmval 29510	. . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) → (𝐴 ·fn 𝑇) = (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥))))
2	1	fveq1d 6667	. . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) → ((𝐴 ·fn 𝑇)‘𝐵) = ((𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥)))‘𝐵))
3		fveq2 6665	. . . . 5 ⊢ (𝑥 = 𝐵 → (𝑇‘𝑥) = (𝑇‘𝐵))
4	3	oveq2d 7166	. . . 4 ⊢ (𝑥 = 𝐵 → (𝐴 · (𝑇‘𝑥)) = (𝐴 · (𝑇‘𝐵)))
5		eqid 2821	. . . 4 ⊢ (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥))) = (𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥)))
6		ovex 7183	. . . 4 ⊢ (𝐴 · (𝑇‘𝐵)) ∈ V
7	4, 5, 6	fvmpt 6763	. . 3 ⊢ (𝐵 ∈ ℋ → ((𝑥 ∈ ℋ ↦ (𝐴 · (𝑇‘𝑥)))‘𝐵) = (𝐴 · (𝑇‘𝐵)))
8	2, 7	sylan9eq 2876	. 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ) ∧ 𝐵 ∈ ℋ) → ((𝐴 ·fn 𝑇)‘𝐵) = (𝐴 · (𝑇‘𝐵)))
9	8	3impa 1106	1 ⊢ ((𝐴 ∈ ℂ ∧ 𝑇: ℋ⟶ℂ ∧ 𝐵 ∈ ℋ) → ((𝐴 ·fn 𝑇)‘𝐵) = (𝐴 · (𝑇‘𝐵)))

Syntax hints:   → wi 4   ∧ wa 398   ∧ w3a 1083   = wceq 1533   ∈ wcel 2110   ↦ cmpt 5139  ⟶wf 6346  ‘cfv 6350  (class class class)co 7150  ℂcc 10529   · cmul 10536   ℋchba 28690   ·_fn chft 28713

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 2156  ax-12 2172  ax-ext 2793  ax-rep 5183  ax-sep 5196  ax-nul 5203  ax-pow 5259  ax-pr 5322  ax-un 7455  ax-cnex 10587  ax-hilex 28770

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  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-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3497  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4833  df-iun 4914  df-br 5060  df-opab 5122  df-mpt 5140  df-id 5455  df-xp 5556  df-rel 5557  df-cnv 5558  df-co 5559  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-iota 6309  df-fun 6352  df-fn 6353  df-f 6354  df-f1 6355  df-fo 6356  df-f1o 6357  df-fv 6358  df-ov 7153  df-oprab 7154  df-mpo 7155  df-map 8402  df-hfmul 29505

This theorem is referenced by:  kbass2  29888  kbass3  29889