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| Mirrors > Home > MPE Home > Th. List > nmorepnf | Structured version Visualization version GIF version | ||
| Description: The norm of an operator is either real or plus infinity. (Contributed by NM, 8-Dec-2007.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| nmoxr.1 | ⊢ 𝑋 = (BaseSet‘𝑈) |
| nmoxr.2 | ⊢ 𝑌 = (BaseSet‘𝑊) |
| nmoxr.3 | ⊢ 𝑁 = (𝑈 normOpOLD 𝑊) |
| Ref | Expression |
|---|---|
| nmorepnf | ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌) → ((𝑁‘𝑇) ∈ ℝ ↔ (𝑁‘𝑇) ≠ +∞)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nmoxr.2 | . . . . 5 ⊢ 𝑌 = (BaseSet‘𝑊) | |
| 2 | eqid 2763 | . . . . 5 ⊢ (normCV‘𝑊) = (normCV‘𝑊) | |
| 3 | 1, 2 | nmosetre 31378 | . . . 4 ⊢ ((𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌) → {𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))} ⊆ ℝ) |
| 4 | nmoxr.1 | . . . . . 6 ⊢ 𝑋 = (BaseSet‘𝑈) | |
| 5 | eqid 2763 | . . . . . 6 ⊢ (0vec‘𝑈) = (0vec‘𝑈) | |
| 6 | eqid 2763 | . . . . . 6 ⊢ (normCV‘𝑈) = (normCV‘𝑈) | |
| 7 | 4, 5, 6 | nmosetn0 31379 | . . . . 5 ⊢ (𝑈 ∈ NrmCVec → ((normCV‘𝑊)‘(𝑇‘(0vec‘𝑈))) ∈ {𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}) |
| 8 | 7 | ne0d 4290 | . . . 4 ⊢ (𝑈 ∈ NrmCVec → {𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))} ≠ ∅) |
| 9 | supxrre2 13471 | . . . 4 ⊢ (({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))} ⊆ ℝ ∧ {𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))} ≠ ∅) → (sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < ) ∈ ℝ ↔ sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < ) ≠ +∞)) | |
| 10 | 3, 8, 9 | syl2anr 609 | . . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ (𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌)) → (sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < ) ∈ ℝ ↔ sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < ) ≠ +∞)) |
| 11 | 10 | 3impb 1132 | . 2 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌) → (sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < ) ∈ ℝ ↔ sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < ) ≠ +∞)) |
| 12 | nmoxr.3 | . . . 4 ⊢ 𝑁 = (𝑈 normOpOLD 𝑊) | |
| 13 | 4, 1, 6, 2, 12 | nmooval 31377 | . . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌) → (𝑁‘𝑇) = sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < )) |
| 14 | 13 | eleq1d 2848 | . 2 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌) → ((𝑁‘𝑇) ∈ ℝ ↔ sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < ) ∈ ℝ)) |
| 15 | 13 | neeq1d 3017 | . 2 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌) → ((𝑁‘𝑇) ≠ +∞ ↔ sup({𝑥 ∣ ∃𝑧 ∈ 𝑋 (((normCV‘𝑈)‘𝑧) ≤ 1 ∧ 𝑥 = ((normCV‘𝑊)‘(𝑇‘𝑧)))}, ℝ*, < ) ≠ +∞)) |
| 16 | 11, 14, 15 | 3bitr4d 314 | 1 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌) → ((𝑁‘𝑇) ∈ ℝ ↔ (𝑁‘𝑇) ≠ +∞)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∧ w3a 1103 = wceq 1569 ∈ wcel 2146 {cab 2741 ≠ wne 2958 ∃wrex 3089 ⊆ wss 3899 ∅c0 4280 class class class wbr 5105 ⟶wf 6542 ‘cfv 6546 (class class class)co 7427 supcsup 9442 ℝcr 11209 1c1 11211 +∞cpnf 11350 ℝ*cxr 11352 < clt 11353 ≤ cle 11354 NrmCVeccnv 31198 BaseSetcba 31200 0veccn0v 31202 normCVcnmcv 31204 normOpOLD cnmoo 31355 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5234 ax-sep 5251 ax-nul 5262 ax-pow 5330 ax-pr 5394 ax-un 7758 ax-cnex 11266 ax-resscn 11267 ax-1cn 11268 ax-icn 11269 ax-addcl 11270 ax-addrcl 11271 ax-mulcl 11272 ax-mulrcl 11273 ax-mulcom 11274 ax-addass 11275 ax-mulass 11276 ax-distr 11277 ax-i2m1 11278 ax-1ne0 11279 ax-1rid 11280 ax-rnegex 11281 ax-rrecex 11282 ax-cnre 11283 ax-pre-lttri 11284 ax-pre-lttrn 11285 ax-pre-ltadd 11286 ax-pre-mulgt0 11287 ax-pre-sup 11288 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3455 df-sbc 3742 df-csb 3851 df-ss 3900 df-pss 4016 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-pw 4561 df-sn 4588 df-pr 4590 df-op 4838 df-uni 4870 df-iun 4955 df-br 5106 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5549 df-eprel 5554 df-po 5562 df-so 5563 df-fr 5607 df-we 5609 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6310 df-ord 6371 df-on 6372 df-lim 6373 df-suc 6374 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-riota 7384 df-ov 7430 df-oprab 7431 df-mpo 7432 df-om 7885 df-1st 8008 df-2nd 8009 df-frecs 8310 df-wrecs 8341 df-recs 8390 df-rdg 8429 df-er 8728 df-map 8860 df-en 8985 df-dom 8986 df-sdom 8987 df-sup 9444 df-pnf 11355 df-mnf 11356 df-xr 11357 df-ltxr 11358 df-le 11359 df-sub 11553 df-neg 11554 df-div 11984 df-nn 12346 df-2 12415 df-3 12416 df-n0 12617 df-z 12704 df-uz 12976 df-rp 13131 df-seq 14155 df-exp 14215 df-cj 15278 df-re 15279 df-im 15280 df-sqrt 15414 df-abs 15415 df-grpo 31107 df-gid 31108 df-ginv 31109 df-ablo 31159 df-vc 31173 df-nv 31206 df-va 31209 df-ba 31210 df-sm 31211 df-0v 31212 df-nmcv 31214 df-nmoo 31359 |
| This theorem is used by: nmoreltpnf 31383 nmogtmnf 31384 nmounbi 31390 |
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