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Theorem isblo 30840
Description: The predicate "is a bounded linear operator." (Contributed by NM, 6-Nov-2007.) (New usage is discouraged.)
Hypotheses
Ref Expression
bloval.3 𝑁 = (𝑈 normOpOLD 𝑊)
bloval.4 𝐿 = (𝑈 LnOp 𝑊)
bloval.5 𝐵 = (𝑈 BLnOp 𝑊)
Assertion
Ref Expression
isblo ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec) → (𝑇𝐵 ↔ (𝑇𝐿 ∧ (𝑁𝑇) < +∞)))

Proof of Theorem isblo
Dummy variable 𝑡 is distinct from all other variables.
StepHypRef Expression
1 bloval.3 . . . 4 𝑁 = (𝑈 normOpOLD 𝑊)
2 bloval.4 . . . 4 𝐿 = (𝑈 LnOp 𝑊)
3 bloval.5 . . . 4 𝐵 = (𝑈 BLnOp 𝑊)
41, 2, 3bloval 30839 . . 3 ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec) → 𝐵 = {𝑡𝐿 ∣ (𝑁𝑡) < +∞})
54eleq2d 2823 . 2 ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec) → (𝑇𝐵𝑇 ∈ {𝑡𝐿 ∣ (𝑁𝑡) < +∞}))
6 fveq2 6835 . . . 4 (𝑡 = 𝑇 → (𝑁𝑡) = (𝑁𝑇))
76breq1d 5109 . . 3 (𝑡 = 𝑇 → ((𝑁𝑡) < +∞ ↔ (𝑁𝑇) < +∞))
87elrab 3647 . 2 (𝑇 ∈ {𝑡𝐿 ∣ (𝑁𝑡) < +∞} ↔ (𝑇𝐿 ∧ (𝑁𝑇) < +∞))
95, 8bitrdi 287 1 ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec) → (𝑇𝐵 ↔ (𝑇𝐿 ∧ (𝑁𝑇) < +∞)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395   = wceq 1542  wcel 2114  {crab 3400   class class class wbr 5099  cfv 6493  (class class class)co 7360  +∞cpnf 11167   < clt 11170  NrmCVeccnv 30642   LnOp clno 30798   normOpOLD cnmoo 30799   BLnOp cblo 30800
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-sep 5242  ax-nul 5252  ax-pr 5378
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3062  df-rab 3401  df-v 3443  df-sbc 3742  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4287  df-if 4481  df-pw 4557  df-sn 4582  df-pr 4584  df-op 4588  df-uni 4865  df-br 5100  df-opab 5162  df-id 5520  df-xp 5631  df-rel 5632  df-cnv 5633  df-co 5634  df-dm 5635  df-iota 6449  df-fun 6495  df-fv 6501  df-ov 7363  df-oprab 7364  df-mpo 7365  df-blo 30804
This theorem is referenced by:  isblo2  30841  bloln  30842  nmblore  30844  isblo3i  30859  htthlem  30975
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