Theorem kbass5 29523

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 29357	. . . . . . . 8 ⊢ ((𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ ∧ 𝑥 ∈ ℋ) → ((𝐶 ketbra 𝐷)‘𝑥) = ((𝑥 ·ih 𝐷) ·ℎ 𝐶))
2	1	3expa 1151	. . . . . . 7 ⊢ (((𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ) ∧ 𝑥 ∈ ℋ) → ((𝐶 ketbra 𝐷)‘𝑥) = ((𝑥 ·ih 𝐷) ·ℎ 𝐶))
3	2	adantll 705	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐶 ketbra 𝐷)‘𝑥) = ((𝑥 ·ih 𝐷) ·ℎ 𝐶))
4	3	fveq2d 6437	. . . . 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 791	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝐴 ∈ ℋ)
6		simpllr 793	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝐵 ∈ ℋ)
7		simpr 479	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝑥 ∈ ℋ)
8		simplrr 796	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝐷 ∈ ℋ)
9		hicl 28481	. . . . . . . 8 ⊢ ((𝑥 ∈ ℋ ∧ 𝐷 ∈ ℋ) → (𝑥 ·ih 𝐷) ∈ ℂ)
10	7, 8, 9	syl2anc 579	. . . . . . 7 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → (𝑥 ·ih 𝐷) ∈ ℂ)
11		simplrl 795	. . . . . . 7 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → 𝐶 ∈ ℋ)
12		hvmulcl 28414	. . . . . . 7 ⊢ (((𝑥 ·ih 𝐷) ∈ ℂ ∧ 𝐶 ∈ ℋ) → ((𝑥 ·ih 𝐷) ·ℎ 𝐶) ∈ ℋ)
13	10, 11, 12	syl2anc 579	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝑥 ·ih 𝐷) ·ℎ 𝐶) ∈ ℋ)
14		kbval 29357	. . . . . 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 1494	. . . . 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 2861	. . . 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 29356	. . . . . 6 ⊢ ((𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ) → (𝐶 ketbra 𝐷): ℋ⟶ ℋ)
18	17	adantl 475	. . . . 5 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → (𝐶 ketbra 𝐷): ℋ⟶ ℋ)
19		fvco3 6522	. . . . 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 575	. . . 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 29357	. . . . . . 7 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘𝐶) = ((𝐶 ·ih 𝐵) ·ℎ 𝐴))
22	5, 6, 11, 21	syl3anc 1494	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘𝐶) = ((𝐶 ·ih 𝐵) ·ℎ 𝐴))
23	22	oveq2d 6921	. . . . 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 29356	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐴 ketbra 𝐵): ℋ⟶ ℋ)
25	24	ffvelrnda 6608	. . . . . . . 8 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ 𝐶 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ)
26	25	adantrr 708	. . . . . . 7 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → ((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ)
27	26	adantr 474	. . . . . 6 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → ((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ)
28		kbval 29357	. . . . . 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 1494	. . . . 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 28485	. . . . . . . 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 1494	. . . . . . 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 6920	. . . . . 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 28481	. . . . . . . 8 ⊢ ((𝐶 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐶 ·ih 𝐵) ∈ ℂ)
34	11, 6, 33	syl2anc 579	. . . . . . 7 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) ∧ 𝑥 ∈ ℋ) → (𝐶 ·ih 𝐵) ∈ ℂ)
35		ax-hvmulass 28408	. . . . . . 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 1494	. . . . . 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 2861	. . . . 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 2871	. . . 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 2871	. . 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 3175	. 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 6295	. . . 4 ⊢ (((𝐴 ketbra 𝐵): ℋ⟶ ℋ ∧ (𝐶 ketbra 𝐷): ℋ⟶ ℋ) → ((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)): ℋ⟶ ℋ)
42	24, 17, 41	syl2an 589	. . 3 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → ((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)): ℋ⟶ ℋ)
43		kbop 29356	. . . . 5 ⊢ ((((𝐴 ketbra 𝐵)‘𝐶) ∈ ℋ ∧ 𝐷 ∈ ℋ) → (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ)
44	25, 43	sylan 575	. . . 4 ⊢ ((((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ 𝐶 ∈ ℋ) ∧ 𝐷 ∈ ℋ) → (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ)
45	44	anasss 460	. . 3 ⊢ (((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) ∧ (𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ)) → (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ)
46		ffn 6278	. . . 4 ⊢ (((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)): ℋ⟶ ℋ → ((𝐴 ketbra 𝐵) ∘ (𝐶 ketbra 𝐷)) Fn ℋ)
47		ffn 6278	. . . 4 ⊢ ((((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷): ℋ⟶ ℋ → (((𝐴 ketbra 𝐵)‘𝐶) ketbra 𝐷) Fn ℋ)
48		eqfnfv 6560	. . . 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 589	. . 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 579	. 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 249	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 198   ∧ wa 386   = wceq 1656   ∈ wcel 2164  ∀wral 3117   ∘ ccom 5346   Fn wfn 6118  ⟶wf 6119  ‘cfv 6123  (class class class)co 6905  ℂcc 10250   · cmul 10257   ℋchba 28320   ·_ℎ csm 28322   ·_ih csp 28323   ketbra ck 28358

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1894  ax-4 1908  ax-5 2009  ax-6 2075  ax-7 2112  ax-8 2166  ax-9 2173  ax-10 2192  ax-11 2207  ax-12 2220  ax-13 2389  ax-ext 2803  ax-rep 4994  ax-sep 5005  ax-nul 5013  ax-pow 5065  ax-pr 5127  ax-hilex 28400  ax-hfvmul 28406  ax-hvmulass 28408  ax-hfi 28480  ax-his3 28485

This theorem depends on definitions:  df-bi 199  df-an 387  df-or 879  df-3an 1113  df-tru 1660  df-ex 1879  df-nf 1883  df-sb 2068  df-mo 2605  df-eu 2640  df-clab 2812  df-cleq 2818  df-clel 2821  df-nfc 2958  df-ne 3000  df-ral 3122  df-rex 3123  df-reu 3124  df-rab 3126  df-v 3416  df-sbc 3663  df-csb 3758  df-dif 3801  df-un 3803  df-in 3805  df-ss 3812  df-nul 4145  df-if 4307  df-sn 4398  df-pr 4400  df-op 4404  df-uni 4659  df-iun 4742  df-br 4874  df-opab 4936  df-mpt 4953  df-id 5250  df-xp 5348  df-rel 5349  df-cnv 5350  df-co 5351  df-dm 5352  df-rn 5353  df-res 5354  df-ima 5355  df-iota 6086  df-fun 6125  df-fn 6126  df-f 6127  df-f1 6128  df-fo 6129  df-f1o 6130  df-fv 6131  df-ov 6908  df-oprab 6909  df-mpt2 6910  df-kb 29254

This theorem is referenced by:  kbass6  29524