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| Mirrors > Home > MPE Home > Th. List > mulg0 | Structured version Visualization version GIF version | ||
| Description: Group multiple (exponentiation) operation at zero. (Contributed by Mario Carneiro, 11-Dec-2014.) |
| Ref | Expression |
|---|---|
| mulg0.b | ⊢ 𝐵 = (Base‘𝐺) |
| mulg0.o | ⊢ 0 = (0g‘𝐺) |
| mulg0.t | ⊢ · = (.g‘𝐺) |
| Ref | Expression |
|---|---|
| mulg0 | ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = 0 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0z 12673 | . 2 ⊢ 0 ∈ ℤ | |
| 2 | mulg0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | eqid 2760 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | mulg0.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
| 5 | eqid 2760 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
| 6 | mulg0.t | . . . 4 ⊢ · = (.g‘𝐺) | |
| 7 | eqid 2760 | . . . 4 ⊢ seq1((+g‘𝐺), (ℕ × {𝑋})) = seq1((+g‘𝐺), (ℕ × {𝑋})) | |
| 8 | 2, 3, 4, 5, 6, 7 | mulgval 19242 | . . 3 ⊢ ((0 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = if(0 = 0, 0 , if(0 < 0, (seq1((+g‘𝐺), (ℕ × {𝑋}))‘0), ((invg‘𝐺)‘(seq1((+g‘𝐺), (ℕ × {𝑋}))‘-0))))) |
| 9 | eqid 2760 | . . . 4 ⊢ 0 = 0 | |
| 10 | 9 | iftruei 4488 | . . 3 ⊢ if(0 = 0, 0 , if(0 < 0, (seq1((+g‘𝐺), (ℕ × {𝑋}))‘0), ((invg‘𝐺)‘(seq1((+g‘𝐺), (ℕ × {𝑋}))‘-0)))) = 0 |
| 11 | 8, 10 | eqtrdi 2811 | . 2 ⊢ ((0 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = 0 ) |
| 12 | 1, 11 | mpan 703 | 1 ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = 0 ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ifcif 4481 {csn 4583 class class class wbr 5102 × cxp 5645 ‘cfv 6527 (class class class)co 7408 0cc0 11171 1c1 11172 < clt 11314 -cneg 11513 ℕcn 12304 ℤcz 12662 seqcseq 14112 Basecbs 17348 +gcplusg 17389 0gc0g 17571 invgcminusg 19106 .gcmg 19238 |
| 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-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-1st 7984 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-n0 12576 df-z 12663 df-uz 12935 df-seq 14113 df-mulg 19239 |
| This theorem is used by: ressmulgnn0 19248 mulgnn0gsum 19251 mulgnn0p1 19256 mulgnn0subcl 19258 mulgneg 19263 mulgaddcom 19269 mulginvcom 19270 mulgnn0z 19272 mulgnn0dir 19275 mulgneg2 19279 mulgnn0ass 19281 mhmmulg 19286 submmulg 19289 cycsubm 19378 odid 19713 oddvdsnn0 19719 oddvds 19722 odf1 19737 gexid 19756 mulgnn0di 20000 0cyg 20068 gsumconst 20109 omndmul2 20308 omndmul 20310 srgmulgass 20404 srgpcomp 20405 srgbinomlem3 20415 srgbinomlem4 20416 srgbinom 20418 mulgass2 20501 lmodvsmmulgdi 21133 cnfldmulg 21671 cnfldexp 21672 freshmansdream 21841 assamulgscmlem1 22168 mplcoe3 22308 mplcoe5 22310 mplbas2 22312 psrbagev1 22347 evlslem3 22350 evlslem1 22352 evlsvvvallem 22361 evlsvvval 22363 selvvvval 22412 mhppwdeg 22432 psdpw 22452 ply1scltm 22561 ply1idvr1 22574 chfacfscmulgsum 23139 chfacfpmmulgsum 23143 cpmadugsumlemF 23155 tmdmulg 24372 clmmulg 25383 dchrptlem2 27555 xrsmulgzz 33503 ressmulgnn0d 33538 archirng 33682 archirngz 33683 archiabllem1b 33686 archiabllem2c 33689 elrgspnlem1 33736 elrgspnlem2 33737 elrgspnlem3 33738 elrgspnlem4 33739 elrgspn 33740 elrgspnsubrunlem1 33741 elrgspnsubrunlem2 33742 rprmdvdspow 33998 evl1deg1 34041 evl1deg2 34042 evl1deg3 34043 evlextv 34107 vieta 34145 aks6d1c1p6 43084 idomnnzpownz 43102 aks6d1c5lem2 43108 deg1pow 43111 aks6d1c6isolem1 43144 aks6d1c6lem5 43147 domnexpgn0cl 43509 abvexp 43518 evlselv 43539 mhphflem 43546 mhphf 43547 lmodvsmdi 49413 |
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