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| Mirrors > Home > HSE Home > Th. List > nmopgtmnf | Structured version Visualization version GIF version | ||
| Description: The norm of a Hilbert space operator is not minus infinity. (Contributed by NM, 2-Feb-2006.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| nmopgtmnf | ⊢ (𝑇: ℋ⟶ ℋ → -∞ < (normop‘𝑇)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nmoprepnf 32009 | . . 3 ⊢ (𝑇: ℋ⟶ ℋ → ((normop‘𝑇) ∈ ℝ ↔ (normop‘𝑇) ≠ +∞)) | |
| 2 | df-ne 2952 | . . 3 ⊢ ((normop‘𝑇) ≠ +∞ ↔ ¬ (normop‘𝑇) = +∞) | |
| 3 | 1, 2 | bitrdi 289 | . 2 ⊢ (𝑇: ℋ⟶ ℋ → ((normop‘𝑇) ∈ ℝ ↔ ¬ (normop‘𝑇) = +∞)) |
| 4 | xor3 384 | . . 3 ⊢ (¬ ((normop‘𝑇) ∈ ℝ ↔ (normop‘𝑇) = +∞) ↔ ((normop‘𝑇) ∈ ℝ ↔ ¬ (normop‘𝑇) = +∞)) | |
| 5 | nbior 896 | . . 3 ⊢ (¬ ((normop‘𝑇) ∈ ℝ ↔ (normop‘𝑇) = +∞) → ((normop‘𝑇) ∈ ℝ ∨ (normop‘𝑇) = +∞)) | |
| 6 | 4, 5 | sylbir 237 | . 2 ⊢ (((normop‘𝑇) ∈ ℝ ↔ ¬ (normop‘𝑇) = +∞) → ((normop‘𝑇) ∈ ℝ ∨ (normop‘𝑇) = +∞)) |
| 7 | mnfltxr 13119 | . 2 ⊢ (((normop‘𝑇) ∈ ℝ ∨ (normop‘𝑇) = +∞) → -∞ < (normop‘𝑇)) | |
| 8 | 3, 6, 7 | 3syl 18 | 1 ⊢ (𝑇: ℋ⟶ ℋ → -∞ < (normop‘𝑇)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∨ wo 856 = wceq 1554 ∈ wcel 2136 ≠ wne 2951 class class class wbr 5094 ⟶wf 6506 ‘cfv 6510 ℝcr 11062 +∞cpnf 11203 -∞cmnf 11204 < clt 11206 ℋchba 31061 normopcnop 31087 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-10 2169 ax-11 2185 ax-12 2206 ax-ext 2728 ax-rep 5221 ax-sep 5240 ax-nul 5250 ax-pow 5316 ax-pr 5384 ax-un 7707 ax-cnex 11119 ax-resscn 11120 ax-1cn 11121 ax-icn 11122 ax-addcl 11123 ax-addrcl 11124 ax-mulcl 11125 ax-mulrcl 11126 ax-mulcom 11127 ax-addass 11128 ax-mulass 11129 ax-distr 11130 ax-i2m1 11131 ax-1ne0 11132 ax-1rid 11133 ax-rnegex 11134 ax-rrecex 11135 ax-cnre 11136 ax-pre-lttri 11137 ax-pre-lttrn 11138 ax-pre-ltadd 11139 ax-pre-mulgt0 11140 ax-pre-sup 11141 ax-hilex 31141 ax-hfvadd 31142 ax-hvcom 31143 ax-hvass 31144 ax-hv0cl 31145 ax-hvaddid 31146 ax-hfvmul 31147 ax-hvmulid 31148 ax-hvmulass 31149 ax-hvdistr1 31150 ax-hvdistr2 31151 ax-hvmul0 31152 ax-hfi 31221 ax-his1 31224 ax-his2 31225 ax-his3 31226 ax-his4 31227 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1557 df-fal 1567 df-ex 1794 df-nf 1798 df-sb 2085 df-mo 2560 df-eu 2590 df-clab 2735 df-cleq 2748 df-clel 2831 df-nfc 2905 df-ne 2952 df-nel 3056 df-ral 3071 df-rex 3081 df-rmo 3361 df-reu 3362 df-rab 3409 df-v 3450 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4281 df-if 4475 df-pw 4551 df-sn 4577 df-pr 4579 df-op 4583 df-uni 4860 df-iun 4945 df-br 5095 df-opab 5157 df-mpt 5176 df-tr 5202 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6466 df-fun 6512 df-fn 6513 df-f 6514 df-f1 6515 df-fo 6516 df-f1o 6517 df-fv 6518 df-riota 7342 df-ov 7388 df-oprab 7389 df-mpo 7390 df-om 7836 df-1st 7959 df-2nd 7960 df-frecs 8250 df-wrecs 8281 df-recs 8330 df-rdg 8369 df-er 8666 df-map 8798 df-en 8917 df-dom 8918 df-sdom 8919 df-sup 9378 df-pnf 11208 df-mnf 11209 df-xr 11210 df-ltxr 11211 df-le 11212 df-sub 11406 df-neg 11407 df-div 11835 df-nn 12201 df-2 12270 df-3 12271 df-4 12272 df-n0 12472 df-z 12559 df-uz 12830 df-rp 12984 df-seq 14005 df-exp 14065 df-cj 15102 df-re 15103 df-im 15104 df-sqrt 15238 df-abs 15239 df-grpo 30635 df-gid 30636 df-ablo 30687 df-vc 30701 df-nv 30734 df-va 30737 df-ba 30738 df-sm 30739 df-0v 30740 df-nmcv 30742 df-hnorm 31110 df-hba 31111 df-hvsub 31113 df-nmop 31981 |
| This theorem is referenced by: nmopre 32012 nmophmi 32173 bdophsi 32238 bdopcoi 32240 |
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