Theorem kbass5 28979

Description: Dirac bra-ket associative law ( ∣ 𝐴⟩ ⟨𝐵 ∣ )( ∣ 𝐶⟩ ⟨𝐷 ∣ ) = (( ∣ 𝐴⟩ ⟨𝐵 ∣ ) ∣ 𝐶⟩)⟨𝐷 ∣. (Contributed by NM, 30-May-2006.) (New usage is discouraged.)

Assertion

Ref	Expression
kbass5	⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → ((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)) = (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷))

Proof of Theorem kbass5

Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		kbval 28813	. . . . . . . 8 ⊢ ((𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ ∧ 𝑥 ∈ ℋ) → ((𝐶 ketbra 𝐷)‘𝑥) = ((𝑥 ·ih 𝐷) ·ℎ 𝐶))
2	1	3expa 1265	. . . . . . 7 ⊢ (((𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ) ∧ 𝑥 ∈ ℋ) → ((𝐶 ketbra 𝐷)‘𝑥) = ((𝑥 ·ih 𝐷) ·ℎ 𝐶))
3	2	adantll 750	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐶 ketbra 𝐷)‘𝑥) = ((𝑥 ·ih 𝐷) ·ℎ 𝐶))
4	3	fveq2d 6195	. . . . 5 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘((𝐶 ketbra 𝐷)‘𝑥)) = ((𝐴 ketbra 𝐵)‘((𝑥 ·ih 𝐷) ·ℎ 𝐶)))
5		simplll 798	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝐴 ∈ ℋ)
6		simpllr 799	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝐵 ∈ ℋ)
7		simpr 477	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝑥 ∈ ℋ)
8		simplrr 801	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝐷 ∈ ℋ)
9		hicl 27937	. . . . . . . 8 ⊢ ((𝑥 ∈ ℋ ∧ 𝐷 ∈ ℋ) → (𝑥 ·ih 𝐷) ∈ ℂ)
10	7, 8, 9	syl2anc 693	. . . . . . 7 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → (𝑥 ·ih 𝐷) ∈ ℂ)
11		simplrl 800	. . . . . . 7 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝐶 ∈ ℋ)
12		hvmulcl 27870	. . . . . . 7 ⊢ (((𝑥 ·ih 𝐷) ∈ ℂ ∧ 𝐶 ∈ ℋ) → ((𝑥 ·ih 𝐷) ·ℎ 𝐶) ∈ ℋ)
13	10, 11, 12	syl2anc 693	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝑥 ·ih 𝐷) ·ℎ 𝐶) ∈ ℋ)
14		kbval 28813	. . . . . 6 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ ((𝑥 ·ih 𝐷) ·ℎ 𝐶) ∈ ℋ) → ((𝐴 ketbra 𝐵)‘((𝑥 ·ih 𝐷) ·ℎ 𝐶)) = ((((𝑥 ·ih 𝐷) ·ℎ 𝐶) ·ih 𝐵) ·ℎ 𝐴))
15	5, 6, 13, 14	syl3anc 1326	. . . . 5 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘((𝑥 ·ih 𝐷) ·ℎ 𝐶)) = ((((𝑥 ·ih 𝐷) ·ℎ 𝐶) ·ih 𝐵) ·ℎ 𝐴))
16	4, 15	eqtrd 2656	. . . 4 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘((𝐶 ketbra 𝐷)‘𝑥)) = ((((𝑥 ·ih 𝐷) ·ℎ 𝐶) ·ih 𝐵) ·ℎ 𝐴))
17		kbop 28812	. . . . . 6 ⊢ ((𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ) → (𝐶 ketbra 𝐷): ℋ⟶ ℋ)
18	17	adantl 482	. . . . 5 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → (𝐶 ketbra 𝐷): ℋ⟶ ℋ)
19		fvco3 6275	. . . . 5 ⊢ (((𝐶 ketbra 𝐷): ℋ⟶ ℋ ∧ 𝑥 ∈ ℋ) → (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷))‘𝑥) = ((𝐴 ketbra 𝐵)‘((𝐶 ketbra 𝐷)‘𝑥)))
20	18, 19	sylan 488	. . . 4 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷))‘𝑥) = ((𝐴 ketbra 𝐵)‘((𝐶 ketbra 𝐷)‘𝑥)))
21		kbval 28813	. . . . . . 7 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘𝐶) = ((𝐶 ·ih 𝐵) ·ℎ 𝐴))
22	5, 6, 11, 21	syl3anc 1326	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘𝐶) = ((𝐶 ·ih 𝐵) ·ℎ 𝐴))
23	22	oveq2d 6666	. . . . 5 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝑥 ·ih 𝐷) ·ℎ ((𝐴 ketbra 𝐵)‘𝐶)) = ((𝑥 ·ih 𝐷) ·ℎ ((𝐶 ·ih 𝐵) ·ℎ 𝐴)))
24		kbop 28812	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐴 ketbra 𝐵): ℋ⟶ ℋ)
25	24	ffvelrnda 6359	. . . . . . . 8 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ 𝐶 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ)
26	25	adantrr 753	. . . . . . 7 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → ((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ)
27	26	adantr 481	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ)
28		kbval 28813	. . . . . 6 ⊢ ((((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ ∧ 𝐷 ∈ ℋ ∧ 𝑥 ∈ ℋ) → ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷)‘𝑥) = ((𝑥 ·ih 𝐷) ·ℎ ((𝐴 ketbra 𝐵)‘𝐶)))
29	27, 8, 7, 28	syl3anc 1326	. . . . 5 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷)‘𝑥) = ((𝑥 ·ih 𝐷) ·ℎ ((𝐴 ketbra 𝐵)‘𝐶)))
30		ax-his3 27941	. . . . . . . 8 ⊢ (((𝑥 ·ih 𝐷) ∈ ℂ ∧ 𝐶 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (((𝑥 ·ih 𝐷) ·ℎ 𝐶) ·ih 𝐵) = ((𝑥 ·ih 𝐷) · (𝐶 ·ih 𝐵)))
31	10, 11, 6, 30	syl3anc 1326	. . . . . . 7 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → (((𝑥 ·ih 𝐷) ·ℎ 𝐶) ·ih 𝐵) = ((𝑥 ·ih 𝐷) · (𝐶 ·ih 𝐵)))
32	31	oveq1d 6665	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((((𝑥 ·ih 𝐷) ·ℎ 𝐶) ·ih 𝐵) ·ℎ 𝐴) = (((𝑥 ·ih 𝐷) · (𝐶 ·ih 𝐵)) ·ℎ 𝐴))
33		hicl 27937	. . . . . . . 8 ⊢ ((𝐶 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐶 ·ih 𝐵) ∈ ℂ)
34	11, 6, 33	syl2anc 693	. . . . . . 7 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → (𝐶 ·ih 𝐵) ∈ ℂ)
35		ax-hvmulass 27864	. . . . . . 7 ⊢ (((𝑥 ·ih 𝐷) ∈ ℂ ∧ (𝐶 ·ih 𝐵) ∈ ℂ ∧ 𝐴 ∈ ℋ) → (((𝑥 ·ih 𝐷) · (𝐶 ·ih 𝐵)) ·ℎ 𝐴) = ((𝑥 ·ih 𝐷) ·ℎ ((𝐶 ·ih 𝐵) ·ℎ 𝐴)))
36	10, 34, 5, 35	syl3anc 1326	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → (((𝑥 ·ih 𝐷) · (𝐶 ·ih 𝐵)) ·ℎ 𝐴) = ((𝑥 ·ih 𝐷) ·ℎ ((𝐶 ·ih 𝐵) ·ℎ 𝐴)))
37	32, 36	eqtrd 2656	. . . . 5 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((((𝑥 ·ih 𝐷) ·ℎ 𝐶) ·ih 𝐵) ·ℎ 𝐴) = ((𝑥 ·ih 𝐷) ·ℎ ((𝐶 ·ih 𝐵) ·ℎ 𝐴)))
38	23, 29, 37	3eqtr4d 2666	. . . 4 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷)‘𝑥) = ((((𝑥 ·ih 𝐷) ·ℎ 𝐶) ·ih 𝐵) ·ℎ 𝐴))
39	16, 20, 38	3eqtr4d 2666	. . 3 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷))‘𝑥) = ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷)‘𝑥))
40	39	ralrimiva 2966	. 2 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → ∀𝑥 ∈ ℋ (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷))‘𝑥) = ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷)‘𝑥))
41		fco 6058	. . . 4 ⊢ (((𝐴 ketbra 𝐵): ℋ⟶ ℋ ∧ (𝐶 ketbra 𝐷): ℋ⟶ ℋ) → ((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)): ℋ⟶ ℋ)
42	24, 17, 41	syl2an 494	. . 3 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → ((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)): ℋ⟶ ℋ)
43		kbop 28812	. . . . 5 ⊢ ((((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ ∧ 𝐷 ∈ ℋ) → (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ)
44	25, 43	sylan 488	. . . 4 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ 𝐶 ∈ ℋ) ∧ 𝐷 ∈ ℋ) → (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ)
45	44	anasss 679	. . 3 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ)
46		ffn 6045	. . . 4 ⊢ (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)): ℋ⟶ ℋ → ((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)) Fn ℋ)
47		ffn 6045	. . . 4 ⊢ ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ → (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷) Fn ℋ)
48		eqfnfv 6311	. . . 4 ⊢ ((((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)) Fn ℋ ∧ (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷) Fn ℋ) → (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)) = (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷) ↔ ∀𝑥 ∈ ℋ (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷))‘𝑥) = ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷)‘𝑥)))
49	46, 47, 48	syl2an 494	. . 3 ⊢ ((((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)): ℋ⟶ ℋ ∧ (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ) → (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)) = (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷) ↔ ∀𝑥 ∈ ℋ (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷))‘𝑥) = ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷)‘𝑥)))
50	42, 45, 49	syl2anc 693	. 2 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)) = (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷) ↔ ∀𝑥 ∈ ℋ (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷))‘𝑥) = ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷)‘𝑥)))
51	40, 50	mpbird 247	1 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → ((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)) = (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷))

Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   = wceq 1483   ∈ wcel 1990  ∀wral 2912   ∘ ccom 5118   Fn wfn 5883  ⟶wf 5884  ‘cfv 5888  (class class class)co 6650  ℂcc 9934   · cmul 9941   ℋchil 27776   ·_ℎ csm 27778   ·_ih csp 27779   ketbra ck 27814

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-hilex 27856  ax-hfvmul 27862  ax-hvmulass 27864  ax-hfi 27936  ax-his3 27941

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-reu 2919  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-kb 28710

This theorem is referenced by:  kbass6  28980