| Hilbert Space Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > HSE Home > Th. List > lnfnconi | Structured version Visualization version GIF version | ||
| Description: A condition equivalent to "𝑇 is continuous" when 𝑇 is linear. Theorem 3.5(iii) of [Beran] p. 99. (Contributed by NM, 14-Feb-2006.) (Proof shortened by Mario Carneiro, 17-Nov-2013.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| lnfncon.1 | ⊢ 𝑇 ∈ LinFn |
| Ref | Expression |
|---|---|
| lnfnconi | ⊢ (𝑇 ∈ ContFn ↔ ∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (abs‘(𝑇‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lnfncon.1 | . . 3 ⊢ 𝑇 ∈ LinFn | |
| 2 | nmcfnex 32132 | . . 3 ⊢ ((𝑇 ∈ LinFn ∧ 𝑇 ∈ ContFn) → (normfn‘𝑇) ∈ ℝ) | |
| 3 | 1, 2 | mpan 691 | . 2 ⊢ (𝑇 ∈ ContFn → (normfn‘𝑇) ∈ ℝ) |
| 4 | nmcfnlb 32133 | . . 3 ⊢ ((𝑇 ∈ LinFn ∧ 𝑇 ∈ ContFn ∧ 𝑦 ∈ ℋ) → (abs‘(𝑇‘𝑦)) ≤ ((normfn‘𝑇) · (normℎ‘𝑦))) | |
| 5 | 1, 4 | mp3an1 1451 | . 2 ⊢ ((𝑇 ∈ ContFn ∧ 𝑦 ∈ ℋ) → (abs‘(𝑇‘𝑦)) ≤ ((normfn‘𝑇) · (normℎ‘𝑦))) |
| 6 | 1 | lnfnfi 32120 | . . 3 ⊢ 𝑇: ℋ⟶ℂ |
| 7 | elcnfn 31961 | . . 3 ⊢ (𝑇 ∈ ContFn ↔ (𝑇: ℋ⟶ℂ ∧ ∀𝑥 ∈ ℋ ∀𝑧 ∈ ℝ+ ∃𝑦 ∈ ℝ+ ∀𝑤 ∈ ℋ ((normℎ‘(𝑤 −ℎ 𝑥)) < 𝑦 → (abs‘((𝑇‘𝑤) − (𝑇‘𝑥))) < 𝑧))) | |
| 8 | 6, 7 | mpbiran 710 | . 2 ⊢ (𝑇 ∈ ContFn ↔ ∀𝑥 ∈ ℋ ∀𝑧 ∈ ℝ+ ∃𝑦 ∈ ℝ+ ∀𝑤 ∈ ℋ ((normℎ‘(𝑤 −ℎ 𝑥)) < 𝑦 → (abs‘((𝑇‘𝑤) − (𝑇‘𝑥))) < 𝑧)) |
| 9 | 6 | ffvelcdmi 7030 | . . 3 ⊢ (𝑦 ∈ ℋ → (𝑇‘𝑦) ∈ ℂ) |
| 10 | 9 | abscld 15366 | . 2 ⊢ (𝑦 ∈ ℋ → (abs‘(𝑇‘𝑦)) ∈ ℝ) |
| 11 | 1 | lnfnsubi 32125 | . 2 ⊢ ((𝑤 ∈ ℋ ∧ 𝑥 ∈ ℋ) → (𝑇‘(𝑤 −ℎ 𝑥)) = ((𝑇‘𝑤) − (𝑇‘𝑥))) |
| 12 | 3, 5, 8, 10, 11 | lnconi 32112 | 1 ⊢ (𝑇 ∈ ContFn ↔ ∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (abs‘(𝑇‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∈ wcel 2114 ∀wral 3052 ∃wrex 3061 class class class wbr 5099 ⟶wf 6489 ‘cfv 6493 (class class class)co 7360 ℂcc 11028 ℝcr 11029 · cmul 11035 < clt 11170 ≤ cle 11171 − cmin 11368 ℝ+crp 12909 abscabs 15161 ℋchba 30998 normℎcno 31002 −ℎ cmv 31004 normfncnmf 31030 ContFnccnfn 31032 LinFnclf 31033 |
| 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-pow 5311 ax-pr 5378 ax-un 7682 ax-cnex 11086 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 ax-pre-mulgt0 11107 ax-pre-sup 11108 ax-hilex 31078 ax-hfvadd 31079 ax-hv0cl 31082 ax-hvaddid 31083 ax-hfvmul 31084 ax-hvmulid 31085 ax-hvmulass 31086 ax-hvmul0 31089 ax-hfi 31158 ax-his1 31161 ax-his3 31163 ax-his4 31164 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 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-nel 3038 df-ral 3053 df-rex 3062 df-rmo 3351 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-er 8637 df-map 8769 df-en 8888 df-dom 8889 df-sdom 8890 df-sup 9349 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-div 11799 df-nn 12150 df-2 12212 df-3 12213 df-n0 12406 df-z 12493 df-uz 12756 df-rp 12910 df-seq 13929 df-exp 13989 df-cj 15026 df-re 15027 df-im 15028 df-sqrt 15162 df-abs 15163 df-hnorm 31047 df-hvsub 31050 df-nmfn 31924 df-cnfn 31926 df-lnfn 31927 |
| This theorem is referenced by: lnfncon 32135 |
| Copyright terms: Public domain | W3C validator |