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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 30516 | . . 3 ⊢ (𝑇: ℋ⟶ ℋ → ((normop‘𝑇) ∈ ℝ ↔ (normop‘𝑇) ≠ +∞)) | |
2 | df-ne 2942 | . . 3 ⊢ ((normop‘𝑇) ≠ +∞ ↔ ¬ (normop‘𝑇) = +∞) | |
3 | 1, 2 | bitrdi 287 | . 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 886 | . . 3 ⊢ (¬ ((normop‘𝑇) ∈ ℝ ↔ (normop‘𝑇) = +∞) → ((normop‘𝑇) ∈ ℝ ∨ (normop‘𝑇) = +∞)) | |
6 | 4, 5 | sylbir 234 | . 2 ⊢ (((normop‘𝑇) ∈ ℝ ↔ ¬ (normop‘𝑇) = +∞) → ((normop‘𝑇) ∈ ℝ ∨ (normop‘𝑇) = +∞)) |
7 | mnfltxr 12968 | . 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 205 ∨ wo 845 = wceq 1541 ∈ wcel 2106 ≠ wne 2941 class class class wbr 5096 ⟶wf 6479 ‘cfv 6483 ℝcr 10975 +∞cpnf 11111 -∞cmnf 11112 < clt 11114 ℋchba 29568 normopcnop 29594 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2708 ax-rep 5233 ax-sep 5247 ax-nul 5254 ax-pow 5312 ax-pr 5376 ax-un 7654 ax-cnex 11032 ax-resscn 11033 ax-1cn 11034 ax-icn 11035 ax-addcl 11036 ax-addrcl 11037 ax-mulcl 11038 ax-mulrcl 11039 ax-mulcom 11040 ax-addass 11041 ax-mulass 11042 ax-distr 11043 ax-i2m1 11044 ax-1ne0 11045 ax-1rid 11046 ax-rnegex 11047 ax-rrecex 11048 ax-cnre 11049 ax-pre-lttri 11050 ax-pre-lttrn 11051 ax-pre-ltadd 11052 ax-pre-mulgt0 11053 ax-pre-sup 11054 ax-hilex 29648 ax-hfvadd 29649 ax-hvcom 29650 ax-hvass 29651 ax-hv0cl 29652 ax-hvaddid 29653 ax-hfvmul 29654 ax-hvmulid 29655 ax-hvmulass 29656 ax-hvdistr1 29657 ax-hvdistr2 29658 ax-hvmul0 29659 ax-hfi 29728 ax-his1 29731 ax-his2 29732 ax-his3 29733 ax-his4 29734 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2815 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3350 df-reu 3351 df-rab 3405 df-v 3444 df-sbc 3731 df-csb 3847 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3920 df-nul 4274 df-if 4478 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4857 df-iun 4947 df-br 5097 df-opab 5159 df-mpt 5180 df-tr 5214 df-id 5522 df-eprel 5528 df-po 5536 df-so 5537 df-fr 5579 df-we 5581 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6242 df-ord 6309 df-on 6310 df-lim 6311 df-suc 6312 df-iota 6435 df-fun 6485 df-fn 6486 df-f 6487 df-f1 6488 df-fo 6489 df-f1o 6490 df-fv 6491 df-riota 7297 df-ov 7344 df-oprab 7345 df-mpo 7346 df-om 7785 df-1st 7903 df-2nd 7904 df-frecs 8171 df-wrecs 8202 df-recs 8276 df-rdg 8315 df-er 8573 df-map 8692 df-en 8809 df-dom 8810 df-sdom 8811 df-sup 9303 df-pnf 11116 df-mnf 11117 df-xr 11118 df-ltxr 11119 df-le 11120 df-sub 11312 df-neg 11313 df-div 11738 df-nn 12079 df-2 12141 df-3 12142 df-4 12143 df-n0 12339 df-z 12425 df-uz 12688 df-rp 12836 df-seq 13827 df-exp 13888 df-cj 14909 df-re 14910 df-im 14911 df-sqrt 15045 df-abs 15046 df-grpo 29142 df-gid 29143 df-ablo 29194 df-vc 29208 df-nv 29241 df-va 29244 df-ba 29245 df-sm 29246 df-0v 29247 df-nmcv 29249 df-hnorm 29617 df-hba 29618 df-hvsub 29620 df-nmop 30488 |
This theorem is referenced by: nmopre 30519 nmophmi 30680 bdophsi 30745 bdopcoi 30747 |
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