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| Mirrors > Home > HSE Home > Th. List > norm0 | Structured version Visualization version GIF version | ||
| Description: The norm of a zero vector. (Contributed by NM, 30-May-1999.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| norm0 | ⊢ (normℎ‘0ℎ) = 0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-hv0cl 30916 | . . 3 ⊢ 0ℎ ∈ ℋ | |
| 2 | normval 31037 | . . 3 ⊢ (0ℎ ∈ ℋ → (normℎ‘0ℎ) = (√‘(0ℎ ·ih 0ℎ))) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (normℎ‘0ℎ) = (√‘(0ℎ ·ih 0ℎ)) |
| 4 | hi01 31009 | . . . 4 ⊢ (0ℎ ∈ ℋ → (0ℎ ·ih 0ℎ) = 0) | |
| 5 | 4 | fveq2d 6876 | . . 3 ⊢ (0ℎ ∈ ℋ → (√‘(0ℎ ·ih 0ℎ)) = (√‘0)) |
| 6 | 1, 5 | ax-mp 5 | . 2 ⊢ (√‘(0ℎ ·ih 0ℎ)) = (√‘0) |
| 7 | sqrt0 15247 | . 2 ⊢ (√‘0) = 0 | |
| 8 | 3, 6, 7 | 3eqtri 2761 | 1 ⊢ (normℎ‘0ℎ) = 0 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1539 ∈ wcel 2107 ‘cfv 6527 (class class class)co 7399 0cc0 11121 √csqrt 15239 ℋchba 30832 ·ih csp 30835 normℎcno 30836 0ℎc0v 30837 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2706 ax-sep 5263 ax-nul 5273 ax-pow 5332 ax-pr 5399 ax-un 7723 ax-cnex 11177 ax-resscn 11178 ax-1cn 11179 ax-icn 11180 ax-addcl 11181 ax-addrcl 11182 ax-mulcl 11183 ax-mulrcl 11184 ax-mulcom 11185 ax-addass 11186 ax-mulass 11187 ax-distr 11188 ax-i2m1 11189 ax-1ne0 11190 ax-1rid 11191 ax-rnegex 11192 ax-rrecex 11193 ax-cnre 11194 ax-pre-lttri 11195 ax-pre-lttrn 11196 ax-pre-ltadd 11197 ax-pre-mulgt0 11198 ax-hv0cl 30916 ax-hvmul0 30923 ax-hfi 30992 ax-his3 30997 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2808 df-nfc 2884 df-ne 2932 df-nel 3036 df-ral 3051 df-rex 3060 df-rmo 3357 df-reu 3358 df-rab 3414 df-v 3459 df-sbc 3764 df-csb 3873 df-dif 3927 df-un 3929 df-in 3931 df-ss 3941 df-pss 3944 df-nul 4307 df-if 4499 df-pw 4575 df-sn 4600 df-pr 4602 df-op 4606 df-uni 4881 df-iun 4966 df-br 5117 df-opab 5179 df-mpt 5199 df-tr 5227 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6287 df-ord 6352 df-on 6353 df-lim 6354 df-suc 6355 df-iota 6480 df-fun 6529 df-fn 6530 df-f 6531 df-f1 6532 df-fo 6533 df-f1o 6534 df-fv 6535 df-riota 7356 df-ov 7402 df-oprab 7403 df-mpo 7404 df-om 7856 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8379 df-rdg 8418 df-er 8713 df-en 8954 df-dom 8955 df-sdom 8956 df-pnf 11263 df-mnf 11264 df-xr 11265 df-ltxr 11266 df-le 11267 df-sub 11460 df-neg 11461 df-div 11887 df-nn 12233 df-2 12295 df-n0 12494 df-z 12581 df-uz 12845 df-rp 13001 df-seq 14009 df-exp 14069 df-cj 15105 df-re 15106 df-im 15107 df-sqrt 15241 df-hnorm 30881 |
| This theorem is referenced by: nmopsetn0 31778 nmfnsetn0 31791 nmopge0 31824 nmfnge0 31840 0cnop 31892 nmop0 31899 nmfn0 31900 nmbdoplbi 31937 nmcexi 31939 nmcopexi 31940 nmcoplbi 31941 nmbdfnlbi 31962 nmcfnlbi 31965 nmopcoi 32008 branmfn 32018 cdj3lem1 32347 |
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