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| Mirrors > Home > HSE Home > Th. List > lnopcon | 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.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| lnopcon | ⊢ (𝑇 ∈ LinOp → (𝑇 ∈ ContOp ↔ ∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (normℎ‘(𝑇‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eleq1 2849 | . . 3 ⊢ (𝑇 = if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) → (𝑇 ∈ ContOp ↔ if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) ∈ ContOp)) | |
| 2 | fveq1 6860 | . . . . . 6 ⊢ (𝑇 = if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) → (𝑇‘𝑦) = (if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ))‘𝑦)) | |
| 3 | 2 | fveq2d 6865 | . . . . 5 ⊢ (𝑇 = if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) → (normℎ‘(𝑇‘𝑦)) = (normℎ‘(if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ))‘𝑦))) |
| 4 | 3 | breq1d 5109 | . . . 4 ⊢ (𝑇 = if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) → ((normℎ‘(𝑇‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦)) ↔ (normℎ‘(if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ))‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦)))) |
| 5 | 4 | rexralbidv 3227 | . . 3 ⊢ (𝑇 = if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) → (∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (normℎ‘(𝑇‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦)) ↔ ∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (normℎ‘(if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ))‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦)))) |
| 6 | 1, 5 | bibi12d 347 | . 2 ⊢ (𝑇 = if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) → ((𝑇 ∈ ContOp ↔ ∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (normℎ‘(𝑇‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦))) ↔ (if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) ∈ ContOp ↔ ∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (normℎ‘(if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ))‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦))))) |
| 7 | idlnop 32139 | . . . 4 ⊢ ( I ↾ ℋ) ∈ LinOp | |
| 8 | 7 | elimel 4549 | . . 3 ⊢ if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) ∈ LinOp |
| 9 | 8 | lnopconi 32181 | . 2 ⊢ (if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ)) ∈ ContOp ↔ ∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (normℎ‘(if(𝑇 ∈ LinOp, 𝑇, ( I ↾ ℋ))‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦))) |
| 10 | 6, 9 | dedth 4538 | 1 ⊢ (𝑇 ∈ LinOp → (𝑇 ∈ ContOp ↔ ∃𝑥 ∈ ℝ ∀𝑦 ∈ ℋ (normℎ‘(𝑇‘𝑦)) ≤ (𝑥 · (normℎ‘𝑦)))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 = wceq 1559 ∈ wcel 2141 ∀wral 3075 ∃wrex 3085 ifcif 4479 class class class wbr 5099 I cid 5539 ↾ cres 5647 ‘cfv 6515 (class class class)co 7390 ℝcr 11067 · cmul 11073 ≤ cle 11212 ℋchba 31066 normℎcno 31070 ContOpccop 31093 LinOpclo 31094 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7712 ax-cnex 11124 ax-resscn 11125 ax-1cn 11126 ax-icn 11127 ax-addcl 11128 ax-addrcl 11129 ax-mulcl 11130 ax-mulrcl 11131 ax-mulcom 11132 ax-addass 11133 ax-mulass 11134 ax-distr 11135 ax-i2m1 11136 ax-1ne0 11137 ax-1rid 11138 ax-rnegex 11139 ax-rrecex 11140 ax-cnre 11141 ax-pre-lttri 11142 ax-pre-lttrn 11143 ax-pre-ltadd 11144 ax-pre-mulgt0 11145 ax-pre-sup 11146 ax-hilex 31146 ax-hfvadd 31147 ax-hvcom 31148 ax-hvass 31149 ax-hv0cl 31150 ax-hvaddid 31151 ax-hfvmul 31152 ax-hvmulid 31153 ax-hvmulass 31154 ax-hvdistr1 31155 ax-hvdistr2 31156 ax-hvmul0 31157 ax-hfi 31226 ax-his1 31229 ax-his2 31230 ax-his3 31231 ax-his4 31232 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-pred 6282 df-ord 6343 df-on 6344 df-lim 6345 df-suc 6346 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7841 df-1st 7964 df-2nd 7965 df-frecs 8255 df-wrecs 8286 df-recs 8335 df-rdg 8374 df-er 8671 df-map 8803 df-en 8922 df-dom 8923 df-sdom 8924 df-sup 9383 df-pnf 11213 df-mnf 11214 df-xr 11215 df-ltxr 11216 df-le 11217 df-sub 11411 df-neg 11412 df-div 11840 df-nn 12206 df-2 12275 df-3 12276 df-4 12277 df-n0 12477 df-z 12564 df-uz 12835 df-rp 12989 df-seq 14010 df-exp 14070 df-cj 15107 df-re 15108 df-im 15109 df-sqrt 15243 df-abs 15244 df-grpo 30640 df-gid 30641 df-ablo 30692 df-vc 30706 df-nv 30739 df-va 30742 df-ba 30743 df-sm 30744 df-0v 30745 df-nmcv 30747 df-hnorm 31115 df-hba 31116 df-hvsub 31118 df-nmop 31986 df-cnop 31987 df-lnop 31988 df-unop 31990 |
| This theorem is referenced by: lnopcnbd 32183 |
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