Theorem adjeq 28794

Description: A property that determines the adjoint of a Hilbert space operator. (Contributed by NM, 20-Feb-2006.) (New usage is discouraged.)

Assertion

Ref	Expression
adjeq	⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦))) → (adjℎ‘𝑇) = 𝑆)

Distinct variable groups:   𝑥,𝑦,𝑆   𝑥,𝑇,𝑦

Proof of Theorem adjeq

Dummy variables 𝑤 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		funadj 28745	. 2 ⊢ Fun adjℎ
2		df-adjh 28708	. . . . . 6 ⊢ adjℎ = {⟨𝑧, 𝑤⟩ ∣ (𝑧: ℋ⟶ ℋ ∧ 𝑤: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑧‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)))}
3	2	eleq2i 2693	. . . . 5 ⊢ (⟨𝑇, 𝑆⟩ ∈ adjℎ ↔ ⟨𝑇, 𝑆⟩ ∈ {⟨𝑧, 𝑤⟩ ∣ (𝑧: ℋ⟶ ℋ ∧ 𝑤: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑧‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)))})
4		ax-hilex 27856	. . . . . . 7 ⊢ ℋ ∈ V
5		fex 6490	. . . . . . 7 ⊢ ((𝑇: ℋ⟶ ℋ ∧ ℋ ∈ V) → 𝑇 ∈ V)
6	4, 5	mpan2 707	. . . . . 6 ⊢ (𝑇: ℋ⟶ ℋ → 𝑇 ∈ V)
7		fex 6490	. . . . . . 7 ⊢ ((𝑆: ℋ⟶ ℋ ∧ ℋ ∈ V) → 𝑆 ∈ V)
8	4, 7	mpan2 707	. . . . . 6 ⊢ (𝑆: ℋ⟶ ℋ → 𝑆 ∈ V)
9		feq1 6026	. . . . . . . 8 ⊢ (𝑧 = 𝑇 → (𝑧: ℋ⟶ ℋ ↔ 𝑇: ℋ⟶ ℋ))
10		fveq1 6190	. . . . . . . . . . 11 ⊢ (𝑧 = 𝑇 → (𝑧‘𝑥) = (𝑇‘𝑥))
11	10	oveq1d 6665	. . . . . . . . . 10 ⊢ (𝑧 = 𝑇 → ((𝑧‘𝑥) ·ih 𝑦) = ((𝑇‘𝑥) ·ih 𝑦))
12	11	eqeq1d 2624	. . . . . . . . 9 ⊢ (𝑧 = 𝑇 → (((𝑧‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)) ↔ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦))))
13	12	2ralbidv 2989	. . . . . . . 8 ⊢ (𝑧 = 𝑇 → (∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑧‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)) ↔ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦))))
14	9, 13	3anbi13d 1401	. . . . . . 7 ⊢ (𝑧 = 𝑇 → ((𝑧: ℋ⟶ ℋ ∧ 𝑤: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑧‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦))) ↔ (𝑇: ℋ⟶ ℋ ∧ 𝑤: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)))))
15		feq1 6026	. . . . . . . 8 ⊢ (𝑤 = 𝑆 → (𝑤: ℋ⟶ ℋ ↔ 𝑆: ℋ⟶ ℋ))
16		fveq1 6190	. . . . . . . . . . 11 ⊢ (𝑤 = 𝑆 → (𝑤‘𝑦) = (𝑆‘𝑦))
17	16	oveq2d 6666	. . . . . . . . . 10 ⊢ (𝑤 = 𝑆 → (𝑥 ·ih (𝑤‘𝑦)) = (𝑥 ·ih (𝑆‘𝑦)))
18	17	eqeq2d 2632	. . . . . . . . 9 ⊢ (𝑤 = 𝑆 → (((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)) ↔ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦))))
19	18	2ralbidv 2989	. . . . . . . 8 ⊢ (𝑤 = 𝑆 → (∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)) ↔ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦))))
20	15, 19	3anbi23d 1402	. . . . . . 7 ⊢ (𝑤 = 𝑆 → ((𝑇: ℋ⟶ ℋ ∧ 𝑤: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦))) ↔ (𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦)))))
21	14, 20	opelopabg 4993	. . . . . 6 ⊢ ((𝑇 ∈ V ∧ 𝑆 ∈ V) → (⟨𝑇, 𝑆⟩ ∈ {⟨𝑧, 𝑤⟩ ∣ (𝑧: ℋ⟶ ℋ ∧ 𝑤: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑧‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)))} ↔ (𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦)))))
22	6, 8, 21	syl2an 494	. . . . 5 ⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ) → (⟨𝑇, 𝑆⟩ ∈ {⟨𝑧, 𝑤⟩ ∣ (𝑧: ℋ⟶ ℋ ∧ 𝑤: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑧‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑤‘𝑦)))} ↔ (𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦)))))
23	3, 22	syl5bb 272	. . . 4 ⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ) → (⟨𝑇, 𝑆⟩ ∈ adjℎ ↔ (𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦)))))
24		df-3an 1039	. . . . 5 ⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦))) ↔ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ) ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦))))
25	24	baibr 945	. . . 4 ⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ) → (∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦)) ↔ (𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦)))))
26	23, 25	bitr4d 271	. . 3 ⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ) → (⟨𝑇, 𝑆⟩ ∈ adjℎ ↔ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦))))
27	26	biimp3ar 1433	. 2 ⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦))) → ⟨𝑇, 𝑆⟩ ∈ adjℎ)
28		funopfv 6235	. 2 ⊢ (Fun adjℎ → (⟨𝑇, 𝑆⟩ ∈ adjℎ → (adjℎ‘𝑇) = 𝑆))
29	1, 27, 28	mpsyl 68	1 ⊢ ((𝑇: ℋ⟶ ℋ ∧ 𝑆: ℋ⟶ ℋ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℋ ((𝑇‘𝑥) ·ih 𝑦) = (𝑥 ·ih (𝑆‘𝑦))) → (adjℎ‘𝑇) = 𝑆)

Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   ∧ w3a 1037   = wceq 1483   ∈ wcel 1990  ∀wral 2912  Vcvv 3200  ⟨cop 4183  {copab 4712  Fun wfun 5882  ⟶wf 5884  ‘cfv 5888  (class class class)co 6650   ℋchil 27776   ·_ih csp 27779  adj_ℎcado 27812

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-un 6949  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-hilex 27856  ax-hfvadd 27857  ax-hvcom 27858  ax-hvass 27859  ax-hv0cl 27860  ax-hvaddid 27861  ax-hfvmul 27862  ax-hvmulid 27863  ax-hvdistr2 27866  ax-hvmul0 27867  ax-hfi 27936  ax-his1 27939  ax-his2 27940  ax-his3 27941  ax-his4 27942

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  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-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  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-pw 4160  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-po 5035  df-so 5036  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-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-er 7742  df-en 7956  df-dom 7957  df-sdom 7958  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-2 11079  df-cj 13839  df-re 13840  df-im 13841  df-hvsub 27828  df-adjh 28708

This theorem is referenced by:  unopadj2  28797  hmopadj  28798  adj0  28853  adjmul  28951  adjadd  28952