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Theorem eigposi 27873
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 (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → (𝐵 ∈ ℝ ∧ 0 ≤ 𝐵))

Proof of Theorem eigposi
StepHypRef Expression
1 oveq2 6535 . . . . . . . 8 ((𝑇𝐴) = (𝐵 · 𝐴) → (𝐴 ·ih (𝑇𝐴)) = (𝐴 ·ih (𝐵 · 𝐴)))
21eleq1d 2672 . . . . . . 7 ((𝑇𝐴) = (𝐵 · 𝐴) → ((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝐵 · 𝐴)) ∈ ℝ))
3 oveq1 6534 . . . . . . . . 9 ((𝑇𝐴) = (𝐵 · 𝐴) → ((𝑇𝐴) ·ih 𝐴) = ((𝐵 · 𝐴) ·ih 𝐴))
41, 3eqeq12d 2625 . . . . . . . 8 ((𝑇𝐴) = (𝐵 · 𝐴) → ((𝐴 ·ih (𝑇𝐴)) = ((𝑇𝐴) ·ih 𝐴) ↔ (𝐴 ·ih (𝐵 · 𝐴)) = ((𝐵 · 𝐴) ·ih 𝐴)))
5 eigpos.1 . . . . . . . . 9 𝐴 ∈ ℋ
6 eigpos.2 . . . . . . . . . 10 𝐵 ∈ ℂ
76, 5hvmulcli 27049 . . . . . . . . 9 (𝐵 · 𝐴) ∈ ℋ
8 hire 27129 . . . . . . . . 9 ((𝐴 ∈ ℋ ∧ (𝐵 · 𝐴) ∈ ℋ) → ((𝐴 ·ih (𝐵 · 𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝐵 · 𝐴)) = ((𝐵 · 𝐴) ·ih 𝐴)))
95, 7, 8mp2an 704 . . . . . . . 8 ((𝐴 ·ih (𝐵 · 𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝐵 · 𝐴)) = ((𝐵 · 𝐴) ·ih 𝐴))
104, 9syl6rbbr 278 . . . . . . 7 ((𝑇𝐴) = (𝐵 · 𝐴) → ((𝐴 ·ih (𝐵 · 𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝑇𝐴)) = ((𝑇𝐴) ·ih 𝐴)))
112, 10bitrd 267 . . . . . 6 ((𝑇𝐴) = (𝐵 · 𝐴) → ((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝑇𝐴)) = ((𝑇𝐴) ·ih 𝐴)))
1211adantr 480 . . . . 5 (((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0) → ((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ↔ (𝐴 ·ih (𝑇𝐴)) = ((𝑇𝐴) ·ih 𝐴)))
135, 6eigrei 27871 . . . . 5 (((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0) → ((𝐴 ·ih (𝑇𝐴)) = ((𝑇𝐴) ·ih 𝐴) ↔ 𝐵 ∈ ℝ))
1412, 13bitrd 267 . . . 4 (((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0) → ((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ↔ 𝐵 ∈ ℝ))
1514biimpac 502 . . 3 (((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → 𝐵 ∈ ℝ)
1615adantlr 747 . 2 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → 𝐵 ∈ ℝ)
17 ax-his4 27120 . . . . 5 ((𝐴 ∈ ℋ ∧ 𝐴 ≠ 0) → 0 < (𝐴 ·ih 𝐴))
185, 17mpan 702 . . . 4 (𝐴 ≠ 0 → 0 < (𝐴 ·ih 𝐴))
1918ad2antll 761 . . 3 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → 0 < (𝐴 ·ih 𝐴))
20 simplr 788 . . . 4 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → 0 ≤ (𝐴 ·ih (𝑇𝐴)))
211ad2antrl 760 . . . . 5 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → (𝐴 ·ih (𝑇𝐴)) = (𝐴 ·ih (𝐵 · 𝐴)))
22 his5 27121 . . . . . . 7 ((𝐵 ∈ ℂ ∧ 𝐴 ∈ ℋ ∧ 𝐴 ∈ ℋ) → (𝐴 ·ih (𝐵 · 𝐴)) = ((∗‘𝐵) · (𝐴 ·ih 𝐴)))
236, 5, 5, 22mp3an 1416 . . . . . 6 (𝐴 ·ih (𝐵 · 𝐴)) = ((∗‘𝐵) · (𝐴 ·ih 𝐴))
2416cjred 13763 . . . . . . 7 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → (∗‘𝐵) = 𝐵)
2524oveq1d 6542 . . . . . 6 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → ((∗‘𝐵) · (𝐴 ·ih 𝐴)) = (𝐵 · (𝐴 ·ih 𝐴)))
2623, 25syl5eq 2656 . . . . 5 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → (𝐴 ·ih (𝐵 · 𝐴)) = (𝐵 · (𝐴 ·ih 𝐴)))
2721, 26eqtrd 2644 . . . 4 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → (𝐴 ·ih (𝑇𝐴)) = (𝐵 · (𝐴 ·ih 𝐴)))
2820, 27breqtrd 4604 . . 3 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → 0 ≤ (𝐵 · (𝐴 ·ih 𝐴)))
29 hiidrcl 27130 . . . . 5 (𝐴 ∈ ℋ → (𝐴 ·ih 𝐴) ∈ ℝ)
305, 29ax-mp 5 . . . 4 (𝐴 ·ih 𝐴) ∈ ℝ
31 prodge02 10723 . . . 4 (((𝐵 ∈ ℝ ∧ (𝐴 ·ih 𝐴) ∈ ℝ) ∧ (0 < (𝐴 ·ih 𝐴) ∧ 0 ≤ (𝐵 · (𝐴 ·ih 𝐴)))) → 0 ≤ 𝐵)
3230, 31mpanl2 713 . . 3 ((𝐵 ∈ ℝ ∧ (0 < (𝐴 ·ih 𝐴) ∧ 0 ≤ (𝐵 · (𝐴 ·ih 𝐴)))) → 0 ≤ 𝐵)
3316, 19, 28, 32syl12anc 1316 . 2 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → 0 ≤ 𝐵)
3416, 33jca 553 1 ((((𝐴 ·ih (𝑇𝐴)) ∈ ℝ ∧ 0 ≤ (𝐴 ·ih (𝑇𝐴))) ∧ ((𝑇𝐴) = (𝐵 · 𝐴) ∧ 𝐴 ≠ 0)) → (𝐵 ∈ ℝ ∧ 0 ≤ 𝐵))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 195  wa 383   = wceq 1475  wcel 1977  wne 2780   class class class wbr 4578  cfv 5790  (class class class)co 6527  cc 9791  cr 9792  0cc0 9793   · cmul 9798   < clt 9931  cle 9932  ccj 13633  chil 26954   · csm 26956   ·ih csp 26957  0c0v 26959
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-sep 4704  ax-nul 4712  ax-pow 4764  ax-pr 4828  ax-un 6825  ax-resscn 9850  ax-1cn 9851  ax-icn 9852  ax-addcl 9853  ax-addrcl 9854  ax-mulcl 9855  ax-mulrcl 9856  ax-mulcom 9857  ax-addass 9858  ax-mulass 9859  ax-distr 9860  ax-i2m1 9861  ax-1ne0 9862  ax-1rid 9863  ax-rnegex 9864  ax-rrecex 9865  ax-cnre 9866  ax-pre-lttri 9867  ax-pre-lttrn 9868  ax-pre-ltadd 9869  ax-pre-mulgt0 9870  ax-hfvmul 27040  ax-hfi 27114  ax-his1 27117  ax-his3 27119  ax-his4 27120
This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4368  df-iun 4452  df-br 4579  df-opab 4639  df-mpt 4640  df-id 4943  df-po 4949  df-so 4950  df-xp 5034  df-rel 5035  df-cnv 5036  df-co 5037  df-dm 5038  df-rn 5039  df-res 5040  df-ima 5041  df-iota 5754  df-fun 5792  df-fn 5793  df-f 5794  df-f1 5795  df-fo 5796  df-f1o 5797  df-fv 5798  df-riota 6489  df-ov 6530  df-oprab 6531  df-mpt2 6532  df-er 7607  df-en 7820  df-dom 7821  df-sdom 7822  df-pnf 9933  df-mnf 9934  df-xr 9935  df-ltxr 9936  df-le 9937  df-sub 10120  df-neg 10121  df-div 10537  df-2 10929  df-cj 13636  df-re 13637  df-im 13638
This theorem is referenced by: (None)
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