| Mathbox for Thierry Arnoux |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ressnm | Structured version Visualization version GIF version | ||
| Description: The norm in a restricted structure. (Contributed by Thierry Arnoux, 8-Oct-2017.) |
| Ref | Expression |
|---|---|
| ressnm.1 | ⊢ 𝐻 = (𝐺 ↾s 𝐴) |
| ressnm.2 | ⊢ 𝐵 = (Base‘𝐺) |
| ressnm.3 | ⊢ 0 = (0g‘𝐺) |
| ressnm.4 | ⊢ 𝑁 = (norm‘𝐺) |
| Ref | Expression |
|---|---|
| ressnm | ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑁 ↾ 𝐴) = (norm‘𝐻)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ressnm.1 | . . . . 5 ⊢ 𝐻 = (𝐺 ↾s 𝐴) | |
| 2 | ressnm.2 | . . . . 5 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | 1, 2 | ressbas2 17377 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 = (Base‘𝐻)) |
| 4 | 3 | 3ad2ant3 1153 | . . 3 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 = (Base‘𝐻)) |
| 5 | 2 | fvexi 6887 | . . . . . . 7 ⊢ 𝐵 ∈ V |
| 6 | 5 | ssex 5281 | . . . . . 6 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 ∈ V) |
| 7 | eqid 2760 | . . . . . . 7 ⊢ (dist‘𝐺) = (dist‘𝐺) | |
| 8 | 1, 7 | ressds 17542 | . . . . . 6 ⊢ (𝐴 ∈ V → (dist‘𝐺) = (dist‘𝐻)) |
| 9 | 6, 8 | syl 18 | . . . . 5 ⊢ (𝐴 ⊆ 𝐵 → (dist‘𝐺) = (dist‘𝐻)) |
| 10 | 9 | 3ad2ant3 1153 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (dist‘𝐺) = (dist‘𝐻)) |
| 11 | eqidd 2761 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝑥 = 𝑥) | |
| 12 | ressnm.3 | . . . . 5 ⊢ 0 = (0g‘𝐺) | |
| 13 | 1, 2, 12 | ress0g 18915 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 0 = (0g‘𝐻)) |
| 14 | 10, 11, 13 | oveq123d 7429 | . . 3 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑥(dist‘𝐺) 0 ) = (𝑥(dist‘𝐻)(0g‘𝐻))) |
| 15 | 4, 14 | mpteq12dv 5191 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 )) = (𝑥 ∈ (Base‘𝐻) ↦ (𝑥(dist‘𝐻)(0g‘𝐻)))) |
| 16 | ressnm.4 | . . . . . 6 ⊢ 𝑁 = (norm‘𝐺) | |
| 17 | 16, 2, 12, 7 | nmfval 24868 | . . . . 5 ⊢ 𝑁 = (𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) |
| 18 | 17 | reseq1i 5962 | . . . 4 ⊢ (𝑁 ↾ 𝐴) = ((𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) ↾ 𝐴) |
| 19 | resmpt 6027 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → ((𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) | |
| 20 | 18, 19 | eqtrid 2807 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → (𝑁 ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) |
| 21 | 20 | 3ad2ant3 1153 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑁 ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) |
| 22 | eqid 2760 | . . . 4 ⊢ (norm‘𝐻) = (norm‘𝐻) | |
| 23 | eqid 2760 | . . . 4 ⊢ (Base‘𝐻) = (Base‘𝐻) | |
| 24 | eqid 2760 | . . . 4 ⊢ (0g‘𝐻) = (0g‘𝐻) | |
| 25 | eqid 2760 | . . . 4 ⊢ (dist‘𝐻) = (dist‘𝐻) | |
| 26 | 22, 23, 24, 25 | nmfval 24868 | . . 3 ⊢ (norm‘𝐻) = (𝑥 ∈ (Base‘𝐻) ↦ (𝑥(dist‘𝐻)(0g‘𝐻))) |
| 27 | 26 | a1i 11 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (norm‘𝐻) = (𝑥 ∈ (Base‘𝐻) ↦ (𝑥(dist‘𝐻)(0g‘𝐻)))) |
| 28 | 15, 21, 27 | 3eqtr4d 2805 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑁 ↾ 𝐴) = (norm‘𝐻)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 Vcvv 3450 ⊆ wss 3898 ↦ cmpt 5185 ↾ cres 5649 ‘cfv 6527 (class class class)co 7408 Basecbs 17348 ↾s cress 17369 distcds 17398 0gc0g 17571 Mndcmnd 18884 normcnm 24856 |
| 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 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7734 ax-cnex 11227 ax-resscn 11228 ax-1cn 11229 ax-icn 11230 ax-addcl 11231 ax-addrcl 11232 ax-mulcl 11233 ax-mulrcl 11234 ax-mulcom 11235 ax-addass 11236 ax-mulass 11237 ax-distr 11238 ax-i2m1 11239 ax-1ne0 11240 ax-1rid 11241 ax-rnegex 11242 ax-rrecex 11243 ax-cnre 11244 ax-pre-lttri 11245 ax-pre-lttrn 11246 ax-pre-ltadd 11247 ax-pre-mulgt0 11248 |
| 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 3739 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6293 df-ord 6354 df-on 6355 df-lim 6356 df-suc 6357 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-f1 6532 df-fo 6533 df-f1o 6534 df-fv 6535 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7861 df-2nd 7985 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-er 8695 df-en 8952 df-dom 8953 df-sdom 8954 df-pnf 11316 df-mnf 11317 df-xr 11318 df-ltxr 11319 df-le 11320 df-sub 11514 df-neg 11515 df-nn 12305 df-2 12374 df-3 12375 df-4 12376 df-5 12377 df-6 12378 df-7 12379 df-8 12380 df-9 12381 df-n0 12576 df-z 12663 df-dec 12784 df-sets 17303 df-slot 17321 df-ndx 17333 df-base 17349 df-ress 17370 df-plusg 17402 df-ds 17411 df-0g 17573 df-mgm 18777 df-sgrp 18869 df-mnd 18885 df-nm 24862 |
| This theorem is used by: zringnm 34523 rezh 34534 |
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