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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 12503 | . 2 ⊢ 0 ∈ ℤ | |
| 2 | mulg0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | eqid 2737 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | mulg0.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
| 5 | eqid 2737 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
| 6 | mulg0.t | . . . 4 ⊢ · = (.g‘𝐺) | |
| 7 | eqid 2737 | . . . 4 ⊢ seq1((+g‘𝐺), (ℕ × {𝑋})) = seq1((+g‘𝐺), (ℕ × {𝑋})) | |
| 8 | 2, 3, 4, 5, 6, 7 | mulgval 19005 | . . 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 2737 | . . . 4 ⊢ 0 = 0 | |
| 10 | 9 | iftruei 4487 | . . 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 2788 | . 2 ⊢ ((0 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = 0 ) |
| 12 | 1, 11 | mpan 691 | 1 ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = 0 ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ifcif 4480 {csn 4581 class class class wbr 5099 × cxp 5623 ‘cfv 6493 (class class class)co 7360 0cc0 11030 1c1 11031 < clt 11170 -cneg 11369 ℕcn 12149 ℤcz 12492 seqcseq 13928 Basecbs 17140 +gcplusg 17181 0gc0g 17363 invgcminusg 18868 .gcmg 19001 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7682 ax-cnex 11086 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 ax-pre-mulgt0 11107 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12150 df-n0 12406 df-z 12493 df-uz 12756 df-seq 13929 df-mulg 19002 |
| This theorem is referenced by: ressmulgnn0 19011 mulgnn0gsum 19014 mulgnn0p1 19019 mulgnn0subcl 19021 mulgneg 19026 mulgaddcom 19032 mulginvcom 19033 mulgnn0z 19035 mulgnn0dir 19038 mulgneg2 19042 mulgnn0ass 19044 mhmmulg 19049 submmulg 19052 cycsubm 19135 odid 19471 oddvdsnn0 19477 oddvds 19480 odf1 19495 gexid 19514 mulgnn0di 19758 0cyg 19826 gsumconst 19867 omndmul2 20066 omndmul 20068 srgmulgass 20156 srgpcomp 20157 srgbinomlem3 20167 srgbinomlem4 20168 srgbinom 20170 mulgass2 20248 lmodvsmmulgdi 20852 cnfldmulg 21362 cnfldexp 21363 freshmansdream 21533 assamulgscmlem1 21859 mplcoe3 21997 mplcoe5 21999 mplbas2 22001 psrbagev1 22036 evlslem3 22039 evlslem1 22041 evlsvvvallem 22050 evlsvvval 22052 mhppwdeg 22097 psdpw 22117 ply1scltm 22227 ply1idvr1 22242 chfacfscmulgsum 22808 chfacfpmmulgsum 22812 cpmadugsumlemF 22824 tmdmulg 24040 clmmulg 25061 dchrptlem2 27236 xrsmulgzz 33072 ressmulgnn0d 33108 archirng 33251 archirngz 33252 archiabllem1b 33255 archiabllem2c 33258 elrgspnlem1 33305 elrgspnlem2 33306 elrgspnlem3 33307 elrgspnlem4 33308 elrgspn 33309 elrgspnsubrunlem1 33310 elrgspnsubrunlem2 33311 rprmdvdspow 33595 evl1deg1 33638 evl1deg2 33639 evl1deg3 33640 evlextv 33688 vieta 33717 aks6d1c1p6 42405 idomnnzpownz 42423 aks6d1c5lem2 42429 deg1pow 42432 aks6d1c6isolem1 42465 aks6d1c6lem5 42468 domnexpgn0cl 42814 abvexp 42823 selvvvval 42864 evlselv 42866 mhphflem 42875 mhphf 42876 lmodvsmdi 48661 |
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