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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 12608 | . 2 ⊢ 0 ∈ ℤ | |
| 2 | mulg0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | eqid 2762 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | mulg0.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
| 5 | eqid 2762 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
| 6 | mulg0.t | . . . 4 ⊢ · = (.g‘𝐺) | |
| 7 | eqid 2762 | . . . 4 ⊢ seq1((+g‘𝐺), (ℕ × {𝑋})) = seq1((+g‘𝐺), (ℕ × {𝑋})) | |
| 8 | 2, 3, 4, 5, 6, 7 | mulgval 19143 | . . 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 2762 | . . . 4 ⊢ 0 = 0 | |
| 10 | 9 | iftruei 4493 | . . 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 2813 | . 2 ⊢ ((0 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = 0 ) |
| 12 | 1, 11 | mpan 702 | 1 ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = 0 ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 400 = wceq 1569 ∈ wcel 2142 ifcif 4486 {csn 4588 class class class wbr 5108 × cxp 5658 ‘cfv 6536 (class class class)co 7412 0cc0 11106 1c1 11107 < clt 11249 -cneg 11448 ℕcn 12239 ℤcz 12597 seqcseq 14044 Basecbs 17275 +gcplusg 17316 0gc0g 17498 invgcminusg 19007 .gcmg 19139 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1103 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3369 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5555 df-eprel 5560 df-po 5568 df-so 5569 df-fr 5613 df-we 5615 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7861 df-1st 7984 df-2nd 7985 df-frecs 8276 df-wrecs 8307 df-recs 8356 df-rdg 8395 df-er 8692 df-en 8942 df-dom 8943 df-sdom 8944 df-pnf 11251 df-mnf 11252 df-xr 11253 df-ltxr 11254 df-le 11255 df-sub 11449 df-neg 11450 df-nn 12240 df-n0 12511 df-z 12598 df-uz 12869 df-seq 14045 df-mulg 19140 |
| This theorem is used by: ressmulgnn0 19149 mulgnn0gsum 19152 mulgnn0p1 19157 mulgnn0subcl 19159 mulgneg 19164 mulgaddcom 19170 mulginvcom 19171 mulgnn0z 19173 mulgnn0dir 19176 mulgneg2 19180 mulgnn0ass 19182 mhmmulg 19187 submmulg 19190 cycsubm 19279 odid 19614 oddvdsnn0 19620 oddvds 19623 odf1 19638 gexid 19657 mulgnn0di 19901 0cyg 19969 gsumconst 20010 omndmul2 20209 omndmul 20211 srgmulgass 20305 srgpcomp 20306 srgbinomlem3 20316 srgbinomlem4 20317 srgbinom 20319 mulgass2 20399 lmodvsmmulgdi 21029 cnfldmulg 21565 cnfldexp 21566 freshmansdream 21735 assamulgscmlem1 22060 mplcoe3 22200 mplcoe5 22202 mplbas2 22204 psrbagev1 22239 evlslem3 22242 evlslem1 22244 evlsvvvallem 22253 evlsvvval 22255 selvvvval 22304 mhppwdeg 22324 psdpw 22344 ply1scltm 22453 ply1idvr1 22466 chfacfscmulgsum 23028 chfacfpmmulgsum 23032 cpmadugsumlemF 23044 tmdmulg 24260 clmmulg 25271 dchrptlem2 27440 xrsmulgzz 33338 ressmulgnn0d 33373 archirng 33517 archirngz 33518 archiabllem1b 33521 archiabllem2c 33524 elrgspnlem1 33571 elrgspnlem2 33572 elrgspnlem3 33573 elrgspnlem4 33574 elrgspn 33575 elrgspnsubrunlem1 33576 elrgspnsubrunlem2 33577 rprmdvdspow 33832 evl1deg1 33875 evl1deg2 33876 evl1deg3 33877 evlextv 33941 vieta 33979 aks6d1c1p6 42909 idomnnzpownz 42927 aks6d1c5lem2 42933 deg1pow 42936 aks6d1c6isolem1 42969 aks6d1c6lem5 42972 domnexpgn0cl 43319 abvexp 43328 evlselv 43349 mhphflem 43356 mhphf 43357 lmodvsmdi 49187 |
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