Theorem eigposi 31816

Description: A sufficient condition (first conjunct pair, that holds when 𝑇 is a positive operator) for an eigenvalue 𝐵 (second conjunct pair) to be nonnegative. Remark (ii) in [Hughes] p. 137. (Contributed by NM, 2-Jul-2005.) (New usage is discouraged.)

Hypotheses

Ref	Expression
eigpos.1	⊢ 𝐴 ∈ ℋ
eigpos.2	⊢ 𝐵 ∈ ℂ

Assertion

Ref	Expression
eigposi	⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → (𝐵 ∈ ℝ ∧ 0 ≤ 𝐵))

Proof of Theorem eigposi

Step	Hyp	Ref	Expression
1		oveq2 7354	. . . . . . . 8 ⊢ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) → (𝐴 ·ih (𝑇‘𝐴)) = (𝐴 ·ih (𝐵 ·ℎ 𝐴)))
2	1	eleq1d 2816	. . . . . . 7 ⊢ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) → ((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝐵 ·ℎ 𝐴)) ∈ ℝ))
3		eigpos.1	. . . . . . . . 9 ⊢ 𝐴 ∈ ℋ
4		eigpos.2	. . . . . . . . . 10 ⊢ 𝐵 ∈ ℂ
5	4, 3	hvmulcli 30994	. . . . . . . . 9 ⊢ (𝐵 ·ℎ 𝐴) ∈ ℋ
6		hire 31074	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℋ ∧ (𝐵 ·ℎ 𝐴) ∈ ℋ) → ((𝐴 ·ih (𝐵 ·ℎ 𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝐵 ·ℎ 𝐴)) = ((𝐵 ·ℎ 𝐴) ·ih 𝐴)))
7	3, 5, 6	mp2an 692	. . . . . . . 8 ⊢ ((𝐴 ·ih (𝐵 ·ℎ 𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝐵 ·ℎ 𝐴)) = ((𝐵 ·ℎ 𝐴) ·ih 𝐴))
8		oveq1 7353	. . . . . . . . 9 ⊢ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) → ((𝑇‘𝐴) ·ih 𝐴) = ((𝐵 ·ℎ 𝐴) ·ih 𝐴))
9	1, 8	eqeq12d 2747	. . . . . . . 8 ⊢ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) → ((𝐴 ·ih (𝑇‘𝐴)) = ((𝑇‘𝐴) ·ih 𝐴) ↔ (𝐴 ·ih (𝐵 ·ℎ 𝐴)) = ((𝐵 ·ℎ 𝐴) ·ih 𝐴)))
10	7, 9	bitr4id 290	. . . . . . 7 ⊢ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) → ((𝐴 ·ih (𝐵 ·ℎ 𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝑇‘𝐴)) = ((𝑇‘𝐴) ·ih 𝐴)))
11	2, 10	bitrd 279	. . . . . 6 ⊢ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) → ((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝑇‘𝐴)) = ((𝑇‘𝐴) ·ih 𝐴)))
12	11	adantr 480	. . . . 5 ⊢ (((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ) → ((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝑇‘𝐴)) = ((𝑇‘𝐴) ·ih 𝐴)))
13	3, 4	eigrei 31814	. . . . 5 ⊢ (((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ) → ((𝐴 ·ih (𝑇‘𝐴)) = ((𝑇‘𝐴) ·ih 𝐴) ↔ 𝐵 ∈ ℝ))
14	12, 13	bitrd 279	. . . 4 ⊢ (((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ) → ((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ↔ 𝐵 ∈ ℝ))
15	14	biimpac 478	. . 3 ⊢ (((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → 𝐵 ∈ ℝ)
16	15	adantlr 715	. 2 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → 𝐵 ∈ ℝ)
17		hiidrcl 31075	. . . . 5 ⊢ (𝐴 ∈ ℋ → (𝐴 ·ih 𝐴) ∈ ℝ)
18	3, 17	mp1i 13	. . . 4 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → (𝐴 ·ih 𝐴) ∈ ℝ)
19		ax-his4 31065	. . . . . 6 ⊢ ((𝐴 ∈ ℋ ∧ 𝐴 ≠ 0ℎ) → 0 < (𝐴 ·ih 𝐴))
20	3, 19	mpan 690	. . . . 5 ⊢ (𝐴 ≠ 0ℎ → 0 < (𝐴 ·ih 𝐴))
21	20	ad2antll 729	. . . 4 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → 0 < (𝐴 ·ih 𝐴))
22	18, 21	elrpd 12931	. . 3 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → (𝐴 ·ih 𝐴) ∈ ℝ+)
23		simplr 768	. . . 4 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → 0 ≤ (𝐴 ·ih (𝑇‘𝐴)))
24	1	ad2antrl 728	. . . . 5 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → (𝐴 ·ih (𝑇‘𝐴)) = (𝐴 ·ih (𝐵 ·ℎ 𝐴)))
25		his5 31066	. . . . . . 7 ⊢ ((𝐵 ∈ ℂ ∧ 𝐴 ∈ ℋ ∧ 𝐴 ∈ ℋ) → (𝐴 ·ih (𝐵 ·ℎ 𝐴)) = ((∗‘𝐵) · (𝐴 ·ih 𝐴)))
26	4, 3, 3, 25	mp3an 1463	. . . . . 6 ⊢ (𝐴 ·ih (𝐵 ·ℎ 𝐴)) = ((∗‘𝐵) · (𝐴 ·ih 𝐴))
27	16	cjred 15133	. . . . . . 7 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → (∗‘𝐵) = 𝐵)
28	27	oveq1d 7361	. . . . . 6 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → ((∗‘𝐵) · (𝐴 ·ih 𝐴)) = (𝐵 · (𝐴 ·ih 𝐴)))
29	26, 28	eqtrid 2778	. . . . 5 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → (𝐴 ·ih (𝐵 ·ℎ 𝐴)) = (𝐵 · (𝐴 ·ih 𝐴)))
30	24, 29	eqtrd 2766	. . . 4 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → (𝐴 ·ih (𝑇‘𝐴)) = (𝐵 · (𝐴 ·ih 𝐴)))
31	23, 30	breqtrd 5115	. . 3 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → 0 ≤ (𝐵 · (𝐴 ·ih 𝐴)))
32	16, 22, 31	prodge0ld 13000	. 2 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → 0 ≤ 𝐵)
33	16, 32	jca 511	1 ⊢ ((((𝐴 ·ih (𝑇‘𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇‘𝐴))) ∧ ((𝑇‘𝐴) = (𝐵 ·ℎ 𝐴) ∧ 𝐴 ≠ 0ℎ)) → (𝐵 ∈ ℝ ∧ 0 ≤ 𝐵))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   = wceq 1541   ∈ wcel 2111   ≠ wne 2928   class class class wbr 5089  ‘cfv 6481  (class class class)co 7346  ℂcc 11004  ℝcr 11005  0cc0 11006   · cmul 11011   < clt 11146   ≤ cle 11147  ∗ccj 15003   ℋchba 30899   ·_ℎ csm 30901   ·_ih csp 30902  0_ℎc0v 30904

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2113  ax-9 2121  ax-10 2144  ax-11 2160  ax-12 2180  ax-ext 2703  ax-sep 5232  ax-nul 5242  ax-pow 5301  ax-pr 5368  ax-un 7668  ax-resscn 11063  ax-1cn 11064  ax-icn 11065  ax-addcl 11066  ax-addrcl 11067  ax-mulcl 11068  ax-mulrcl 11069  ax-mulcom 11070  ax-addass 11071  ax-mulass 11072  ax-distr 11073  ax-i2m1 11074  ax-1ne0 11075  ax-1rid 11076  ax-rnegex 11077  ax-rrecex 11078  ax-cnre 11079  ax-pre-lttri 11080  ax-pre-lttrn 11081  ax-pre-ltadd 11082  ax-pre-mulgt0 11083  ax-hfvmul 30985  ax-hfi 31059  ax-his1 31062  ax-his3 31064  ax-his4 31065

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2535  df-eu 2564  df-clab 2710  df-cleq 2723  df-clel 2806  df-nfc 2881  df-ne 2929  df-nel 3033  df-ral 3048  df-rex 3057  df-rmo 3346  df-reu 3347  df-rab 3396  df-v 3438  df-sbc 3737  df-csb 3846  df-dif 3900  df-un 3902  df-in 3904  df-ss 3914  df-pss 3917  df-nul 4281  df-if 4473  df-pw 4549  df-sn 4574  df-pr 4576  df-op 4580  df-uni 4857  df-iun 4941  df-br 5090  df-opab 5152  df-mpt 5171  df-tr 5197  df-id 5509  df-eprel 5514  df-po 5522  df-so 5523  df-fr 5567  df-we 5569  df-xp 5620  df-rel 5621  df-cnv 5622  df-co 5623  df-dm 5624  df-rn 5625  df-res 5626  df-ima 5627  df-pred 6248  df-ord 6309  df-on 6310  df-lim 6311  df-suc 6312  df-iota 6437  df-fun 6483  df-fn 6484  df-f 6485  df-f1 6486  df-fo 6487  df-f1o 6488  df-fv 6489  df-riota 7303  df-ov 7349  df-oprab 7350  df-mpo 7351  df-om 7797  df-2nd 7922  df-frecs 8211  df-wrecs 8242  df-recs 8291  df-rdg 8329  df-er 8622  df-en 8870  df-dom 8871  df-sdom 8872  df-pnf 11148  df-mnf 11149  df-xr 11150  df-ltxr 11151  df-le 11152  df-sub 11346  df-neg 11347  df-div 11775  df-nn 12126  df-2 12188  df-rp 12891  df-cj 15006  df-re 15007  df-im 15008

This theorem is referenced by: (None)