| Hilbert Space Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > HSE Home > Th. List > 0cnfn | Structured version Visualization version GIF version | ||
| Description: The identically zero function is a continuous Hilbert space functional. (Contributed by NM, 7-Feb-2006.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| 0cnfn | ⊢ ( ℋ × {0}) ∈ ContFn |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0cn 11223 | . . 3 ⊢ 0 ∈ ℂ | |
| 2 | 1 | fconst6 6766 | . 2 ⊢ ( ℋ × {0}): ℋ⟶ℂ |
| 3 | 1rp 13047 | . . . 4 ⊢ 1 ∈ ℝ+ | |
| 4 | c0ex 11225 | . . . . . . . . . . . . 13 ⊢ 0 ∈ V | |
| 5 | 4 | fvconst2 7204 | . . . . . . . . . . . 12 ⊢ (𝑤 ∈ ℋ → (( ℋ × {0})‘𝑤) = 0) |
| 6 | 4 | fvconst2 7204 | . . . . . . . . . . . 12 ⊢ (𝑥 ∈ ℋ → (( ℋ × {0})‘𝑥) = 0) |
| 7 | 5, 6 | oveqan12rd 7434 | . . . . . . . . . . 11 ⊢ ((𝑥 ∈ ℋ ∧ 𝑤 ∈ ℋ) → ((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥)) = (0 − 0)) |
| 8 | 7 | adantlr 728 | . . . . . . . . . 10 ⊢ (((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) ∧ 𝑤 ∈ ℋ) → ((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥)) = (0 − 0)) |
| 9 | 0m0e0 12384 | . . . . . . . . . 10 ⊢ (0 − 0) = 0 | |
| 10 | 8, 9 | eqtrdi 2811 | . . . . . . . . 9 ⊢ (((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) ∧ 𝑤 ∈ ℋ) → ((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥)) = 0) |
| 11 | 10 | fveq2d 6883 | . . . . . . . 8 ⊢ (((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) ∧ 𝑤 ∈ ℋ) → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) = (abs‘0)) |
| 12 | abs0 15373 | . . . . . . . 8 ⊢ (abs‘0) = 0 | |
| 13 | 11, 12 | eqtrdi 2811 | . . . . . . 7 ⊢ (((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) ∧ 𝑤 ∈ ℋ) → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) = 0) |
| 14 | rpgt0 13056 | . . . . . . . 8 ⊢ (𝑦 ∈ ℝ+ → 0 < 𝑦) | |
| 15 | 14 | ad2antlr 740 | . . . . . . 7 ⊢ (((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) ∧ 𝑤 ∈ ℋ) → 0 < 𝑦) |
| 16 | 13, 15 | eqbrtrd 5127 | . . . . . 6 ⊢ (((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) ∧ 𝑤 ∈ ℋ) → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) < 𝑦) |
| 17 | 16 | a1d 26 | . . . . 5 ⊢ (((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) ∧ 𝑤 ∈ ℋ) → ((normℎ‘(𝑤 −ℎ 𝑥)) < 1 → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) < 𝑦)) |
| 18 | 17 | ralrimiva 3154 | . . . 4 ⊢ ((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) → ∀𝑤 ∈ ℋ ((normℎ‘(𝑤 −ℎ 𝑥)) < 1 → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) < 𝑦)) |
| 19 | breq2 5107 | . . . . 5 ⊢ (𝑧 = 1 → ((normℎ‘(𝑤 −ℎ 𝑥)) < 𝑧 ↔ (normℎ‘(𝑤 −ℎ 𝑥)) < 1)) | |
| 20 | 19 | rspceaimv 3582 | . . . 4 ⊢ ((1 ∈ ℝ+ ∧ ∀𝑤 ∈ ℋ ((normℎ‘(𝑤 −ℎ 𝑥)) < 1 → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) < 𝑦)) → ∃𝑧 ∈ ℝ+ ∀𝑤 ∈ ℋ ((normℎ‘(𝑤 −ℎ 𝑥)) < 𝑧 → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) < 𝑦)) |
| 21 | 3, 18, 20 | sylancr 599 | . . 3 ⊢ ((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℝ+) → ∃𝑧 ∈ ℝ+ ∀𝑤 ∈ ℋ ((normℎ‘(𝑤 −ℎ 𝑥)) < 𝑧 → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) < 𝑦)) |
| 22 | 21 | rgen2 3202 | . 2 ⊢ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℝ+ ∃𝑧 ∈ ℝ+ ∀𝑤 ∈ ℋ ((normℎ‘(𝑤 −ℎ 𝑥)) < 𝑧 → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) < 𝑦) |
| 23 | elcnfn 32364 | . 2 ⊢ (( ℋ × {0}) ∈ ContFn ↔ (( ℋ × {0}): ℋ⟶ℂ ∧ ∀𝑥 ∈ ℋ ∀𝑦 ∈ ℝ+ ∃𝑧 ∈ ℝ+ ∀𝑤 ∈ ℋ ((normℎ‘(𝑤 −ℎ 𝑥)) < 𝑧 → (abs‘((( ℋ × {0})‘𝑤) − (( ℋ × {0})‘𝑥))) < 𝑦))) | |
| 24 | 2, 22, 23 | mpbir2an 724 | 1 ⊢ ( ℋ × {0}) ∈ ContFn |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∀wral 3076 ∃wrex 3086 {csn 4584 class class class wbr 5103 × cxp 5653 ⟶wf 6529 ‘cfv 6533 (class class class)co 7414 ℂcc 11123 0cc0 11125 1c1 11126 < clt 11268 − cmin 11466 ℝ+crp 13043 abscabs 15322 ℋchba 31401 normℎcno 31405 −ℎ cmv 31407 ContFnccnfn 31435 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-cnex 11181 ax-resscn 11182 ax-1cn 11183 ax-icn 11184 ax-addcl 11185 ax-addrcl 11186 ax-mulcl 11187 ax-mulrcl 11188 ax-mulcom 11189 ax-addass 11190 ax-mulass 11191 ax-distr 11192 ax-i2m1 11193 ax-1ne0 11194 ax-1rid 11195 ax-rnegex 11196 ax-rrecex 11197 ax-cnre 11198 ax-pre-lttri 11199 ax-pre-lttrn 11200 ax-pre-ltadd 11201 ax-pre-mulgt0 11202 ax-hilex 31481 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7864 df-2nd 7988 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-er 8697 df-map 8829 df-en 8954 df-dom 8955 df-sdom 8956 df-pnf 11270 df-mnf 11271 df-xr 11272 df-ltxr 11273 df-le 11274 df-sub 11468 df-neg 11469 df-div 11897 df-nn 12259 df-2 12328 df-n0 12530 df-z 12617 df-uz 12889 df-rp 13044 df-seq 14067 df-exp 14127 df-cj 15187 df-re 15188 df-im 15189 df-sqrt 15323 df-abs 15324 df-cnfn 32329 |
| This theorem is used by: nmcfnex 32535 nmcfnlb 32536 riesz4 32546 riesz1 32547 |
| Copyright terms: Public domain | W3C validator |