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Mirrors > Home > HSE Home > Th. List > nmopre | Structured version Visualization version GIF version |
Description: The norm of a bounded operator is a real number. (Contributed by NM, 29-Jan-2006.) (New usage is discouraged.) |
Ref | Expression |
---|---|
nmopre | ⊢ (𝑇 ∈ BndLinOp → (normop‘𝑇) ∈ ℝ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bdopf 29293 | . . 3 ⊢ (𝑇 ∈ BndLinOp → 𝑇: ℋ⟶ ℋ) | |
2 | nmopgtmnf 29299 | . . 3 ⊢ (𝑇: ℋ⟶ ℋ → -∞ < (normop‘𝑇)) | |
3 | 1, 2 | syl 17 | . 2 ⊢ (𝑇 ∈ BndLinOp → -∞ < (normop‘𝑇)) |
4 | elbdop 29291 | . . 3 ⊢ (𝑇 ∈ BndLinOp ↔ (𝑇 ∈ LinOp ∧ (normop‘𝑇) < +∞)) | |
5 | 4 | simprbi 492 | . 2 ⊢ (𝑇 ∈ BndLinOp → (normop‘𝑇) < +∞) |
6 | nmopxr 29297 | . . 3 ⊢ (𝑇: ℋ⟶ ℋ → (normop‘𝑇) ∈ ℝ*) | |
7 | xrrebnd 12311 | . . 3 ⊢ ((normop‘𝑇) ∈ ℝ* → ((normop‘𝑇) ∈ ℝ ↔ (-∞ < (normop‘𝑇) ∧ (normop‘𝑇) < +∞))) | |
8 | 1, 6, 7 | 3syl 18 | . 2 ⊢ (𝑇 ∈ BndLinOp → ((normop‘𝑇) ∈ ℝ ↔ (-∞ < (normop‘𝑇) ∧ (normop‘𝑇) < +∞))) |
9 | 3, 5, 8 | mpbir2and 703 | 1 ⊢ (𝑇 ∈ BndLinOp → (normop‘𝑇) ∈ ℝ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 198 ∧ wa 386 ∈ wcel 2107 class class class wbr 4886 ⟶wf 6131 ‘cfv 6135 ℝcr 10271 +∞cpnf 10408 -∞cmnf 10409 ℝ*cxr 10410 < clt 10411 ℋchba 28348 normopcnop 28374 LinOpclo 28376 BndLinOpcbo 28377 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1839 ax-4 1853 ax-5 1953 ax-6 2021 ax-7 2055 ax-8 2109 ax-9 2116 ax-10 2135 ax-11 2150 ax-12 2163 ax-13 2334 ax-ext 2754 ax-rep 5006 ax-sep 5017 ax-nul 5025 ax-pow 5077 ax-pr 5138 ax-un 7226 ax-cnex 10328 ax-resscn 10329 ax-1cn 10330 ax-icn 10331 ax-addcl 10332 ax-addrcl 10333 ax-mulcl 10334 ax-mulrcl 10335 ax-mulcom 10336 ax-addass 10337 ax-mulass 10338 ax-distr 10339 ax-i2m1 10340 ax-1ne0 10341 ax-1rid 10342 ax-rnegex 10343 ax-rrecex 10344 ax-cnre 10345 ax-pre-lttri 10346 ax-pre-lttrn 10347 ax-pre-ltadd 10348 ax-pre-mulgt0 10349 ax-pre-sup 10350 ax-hilex 28428 ax-hfvadd 28429 ax-hvcom 28430 ax-hvass 28431 ax-hv0cl 28432 ax-hvaddid 28433 ax-hfvmul 28434 ax-hvmulid 28435 ax-hvmulass 28436 ax-hvdistr1 28437 ax-hvdistr2 28438 ax-hvmul0 28439 ax-hfi 28508 ax-his1 28511 ax-his2 28512 ax-his3 28513 ax-his4 28514 |
This theorem depends on definitions: df-bi 199 df-an 387 df-or 837 df-3or 1072 df-3an 1073 df-tru 1605 df-ex 1824 df-nf 1828 df-sb 2012 df-mo 2551 df-eu 2587 df-clab 2764 df-cleq 2770 df-clel 2774 df-nfc 2921 df-ne 2970 df-nel 3076 df-ral 3095 df-rex 3096 df-reu 3097 df-rmo 3098 df-rab 3099 df-v 3400 df-sbc 3653 df-csb 3752 df-dif 3795 df-un 3797 df-in 3799 df-ss 3806 df-pss 3808 df-nul 4142 df-if 4308 df-pw 4381 df-sn 4399 df-pr 4401 df-tp 4403 df-op 4405 df-uni 4672 df-iun 4755 df-br 4887 df-opab 4949 df-mpt 4966 df-tr 4988 df-id 5261 df-eprel 5266 df-po 5274 df-so 5275 df-fr 5314 df-we 5316 df-xp 5361 df-rel 5362 df-cnv 5363 df-co 5364 df-dm 5365 df-rn 5366 df-res 5367 df-ima 5368 df-pred 5933 df-ord 5979 df-on 5980 df-lim 5981 df-suc 5982 df-iota 6099 df-fun 6137 df-fn 6138 df-f 6139 df-f1 6140 df-fo 6141 df-f1o 6142 df-fv 6143 df-riota 6883 df-ov 6925 df-oprab 6926 df-mpt2 6927 df-om 7344 df-1st 7445 df-2nd 7446 df-wrecs 7689 df-recs 7751 df-rdg 7789 df-er 8026 df-map 8142 df-en 8242 df-dom 8243 df-sdom 8244 df-sup 8636 df-pnf 10413 df-mnf 10414 df-xr 10415 df-ltxr 10416 df-le 10417 df-sub 10608 df-neg 10609 df-div 11033 df-nn 11375 df-2 11438 df-3 11439 df-4 11440 df-n0 11643 df-z 11729 df-uz 11993 df-rp 12138 df-seq 13120 df-exp 13179 df-cj 14246 df-re 14247 df-im 14248 df-sqrt 14382 df-abs 14383 df-grpo 27920 df-gid 27921 df-ablo 27972 df-vc 27986 df-nv 28019 df-va 28022 df-ba 28023 df-sm 28024 df-0v 28025 df-nmcv 28027 df-hnorm 28397 df-hba 28398 df-hvsub 28400 df-nmop 29270 df-lnop 29272 df-bdop 29273 |
This theorem is referenced by: nmbdoplbi 29455 nmophmi 29462 bdophmi 29463 lnopcnbd 29467 nmopadjlem 29520 nmopadji 29521 nmoptrii 29525 nmopcoi 29526 bdophsi 29527 bdopcoi 29529 nmoptri2i 29530 nmopcoadji 29532 nmopcoadj0i 29534 unierri 29535 |
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