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Mirrors > Home > MPE Home > Th. List > mulgz | Structured version Visualization version GIF version |
Description: A group multiple of the identity, for integer multiple. (Contributed by Mario Carneiro, 13-Dec-2014.) |
Ref | Expression |
---|---|
mulgnn0z.b | ⊢ 𝐵 = (Base‘𝐺) |
mulgnn0z.t | ⊢ · = (.g‘𝐺) |
mulgnn0z.o | ⊢ 0 = (0g‘𝐺) |
Ref | Expression |
---|---|
mulgz | ⊢ ((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) → (𝑁 · 0 ) = 0 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | grpmnd 18584 | . . . 4 ⊢ (𝐺 ∈ Grp → 𝐺 ∈ Mnd) | |
2 | 1 | adantr 481 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) → 𝐺 ∈ Mnd) |
3 | mulgnn0z.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
4 | mulgnn0z.t | . . . 4 ⊢ · = (.g‘𝐺) | |
5 | mulgnn0z.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
6 | 3, 4, 5 | mulgnn0z 18730 | . . 3 ⊢ ((𝐺 ∈ Mnd ∧ 𝑁 ∈ ℕ0) → (𝑁 · 0 ) = 0 ) |
7 | 2, 6 | sylan 580 | . 2 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ 𝑁 ∈ ℕ0) → (𝑁 · 0 ) = 0 ) |
8 | simpll 764 | . . . 4 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → 𝐺 ∈ Grp) | |
9 | nn0z 12343 | . . . . 5 ⊢ (-𝑁 ∈ ℕ0 → -𝑁 ∈ ℤ) | |
10 | 9 | adantl 482 | . . . 4 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → -𝑁 ∈ ℤ) |
11 | 3, 5 | grpidcl 18607 | . . . . 5 ⊢ (𝐺 ∈ Grp → 0 ∈ 𝐵) |
12 | 11 | ad2antrr 723 | . . . 4 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → 0 ∈ 𝐵) |
13 | eqid 2738 | . . . . 5 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
14 | 3, 4, 13 | mulgneg 18722 | . . . 4 ⊢ ((𝐺 ∈ Grp ∧ -𝑁 ∈ ℤ ∧ 0 ∈ 𝐵) → (--𝑁 · 0 ) = ((invg‘𝐺)‘(-𝑁 · 0 ))) |
15 | 8, 10, 12, 14 | syl3anc 1370 | . . 3 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → (--𝑁 · 0 ) = ((invg‘𝐺)‘(-𝑁 · 0 ))) |
16 | zcn 12324 | . . . . . 6 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℂ) | |
17 | 16 | ad2antlr 724 | . . . . 5 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → 𝑁 ∈ ℂ) |
18 | 17 | negnegd 11323 | . . . 4 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → --𝑁 = 𝑁) |
19 | 18 | oveq1d 7290 | . . 3 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → (--𝑁 · 0 ) = (𝑁 · 0 )) |
20 | 3, 4, 5 | mulgnn0z 18730 | . . . . . 6 ⊢ ((𝐺 ∈ Mnd ∧ -𝑁 ∈ ℕ0) → (-𝑁 · 0 ) = 0 ) |
21 | 2, 20 | sylan 580 | . . . . 5 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → (-𝑁 · 0 ) = 0 ) |
22 | 21 | fveq2d 6778 | . . . 4 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → ((invg‘𝐺)‘(-𝑁 · 0 )) = ((invg‘𝐺)‘ 0 )) |
23 | 5, 13 | grpinvid 18636 | . . . . 5 ⊢ (𝐺 ∈ Grp → ((invg‘𝐺)‘ 0 ) = 0 ) |
24 | 23 | ad2antrr 723 | . . . 4 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → ((invg‘𝐺)‘ 0 ) = 0 ) |
25 | 22, 24 | eqtrd 2778 | . . 3 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → ((invg‘𝐺)‘(-𝑁 · 0 )) = 0 ) |
26 | 15, 19, 25 | 3eqtr3d 2786 | . 2 ⊢ (((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) ∧ -𝑁 ∈ ℕ0) → (𝑁 · 0 ) = 0 ) |
27 | elznn0 12334 | . . . 4 ⊢ (𝑁 ∈ ℤ ↔ (𝑁 ∈ ℝ ∧ (𝑁 ∈ ℕ0 ∨ -𝑁 ∈ ℕ0))) | |
28 | 27 | simprbi 497 | . . 3 ⊢ (𝑁 ∈ ℤ → (𝑁 ∈ ℕ0 ∨ -𝑁 ∈ ℕ0)) |
29 | 28 | adantl 482 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) → (𝑁 ∈ ℕ0 ∨ -𝑁 ∈ ℕ0)) |
30 | 7, 26, 29 | mpjaodan 956 | 1 ⊢ ((𝐺 ∈ Grp ∧ 𝑁 ∈ ℤ) → (𝑁 · 0 ) = 0 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∨ wo 844 = wceq 1539 ∈ wcel 2106 ‘cfv 6433 (class class class)co 7275 ℂcc 10869 ℝcr 10870 -cneg 11206 ℕ0cn0 12233 ℤcz 12319 Basecbs 16912 0gc0g 17150 Mndcmnd 18385 Grpcgrp 18577 invgcminusg 18578 .gcmg 18700 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-n0 12234 df-z 12320 df-uz 12583 df-fz 13240 df-seq 13722 df-0g 17152 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-grp 18580 df-minusg 18581 df-mulg 18701 |
This theorem is referenced by: mulgmodid 18742 odmod 19154 gexdvdsi 19188 |
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