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| Mirrors > Home > MPE Home > Th. List > iscygodd | Structured version Visualization version GIF version | ||
| Description: Show that a group with an element the same order as the group is cyclic. (Contributed by Mario Carneiro, 27-Apr-2016.) |
| Ref | Expression |
|---|---|
| iscygodd.1 | ⊢ 𝐵 = (Base‘𝐺) |
| iscygodd.o | ⊢ 𝑂 = (od‘𝐺) |
| iscygodd.3 | ⊢ (𝜑 → 𝐺 ∈ Grp) |
| iscygodd.4 | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| iscygodd.5 | ⊢ (𝜑 → (𝑂‘𝑋) = (♯‘𝐵)) |
| Ref | Expression |
|---|---|
| iscygodd | ⊢ (𝜑 → 𝐺 ∈ CycGrp) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iscygodd.3 | . 2 ⊢ (𝜑 → 𝐺 ∈ Grp) | |
| 2 | iscygodd.4 | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 3 | iscygodd.5 | . . . 4 ⊢ (𝜑 → (𝑂‘𝑋) = (♯‘𝐵)) | |
| 4 | iscygodd.1 | . . . . . . . . 9 ⊢ 𝐵 = (Base‘𝐺) | |
| 5 | iscygodd.o | . . . . . . . . 9 ⊢ 𝑂 = (od‘𝐺) | |
| 6 | 4, 5 | odcl 19472 | . . . . . . . 8 ⊢ (𝑋 ∈ 𝐵 → (𝑂‘𝑋) ∈ ℕ0) |
| 7 | 2, 6 | syl 17 | . . . . . . 7 ⊢ (𝜑 → (𝑂‘𝑋) ∈ ℕ0) |
| 8 | 3, 7 | eqeltrrd 2830 | . . . . . 6 ⊢ (𝜑 → (♯‘𝐵) ∈ ℕ0) |
| 9 | 4 | fvexi 6879 | . . . . . . 7 ⊢ 𝐵 ∈ V |
| 10 | hashclb 14333 | . . . . . . 7 ⊢ (𝐵 ∈ V → (𝐵 ∈ Fin ↔ (♯‘𝐵) ∈ ℕ0)) | |
| 11 | 9, 10 | ax-mp 5 | . . . . . 6 ⊢ (𝐵 ∈ Fin ↔ (♯‘𝐵) ∈ ℕ0) |
| 12 | 8, 11 | sylibr 234 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ Fin) |
| 13 | eqid 2730 | . . . . . 6 ⊢ (.g‘𝐺) = (.g‘𝐺) | |
| 14 | eqid 2730 | . . . . . 6 ⊢ {𝑥 ∈ 𝐵 ∣ ran (𝑛 ∈ ℤ ↦ (𝑛(.g‘𝐺)𝑥)) = 𝐵} = {𝑥 ∈ 𝐵 ∣ ran (𝑛 ∈ ℤ ↦ (𝑛(.g‘𝐺)𝑥)) = 𝐵} | |
| 15 | 4, 13, 14, 5 | cyggenod 19820 | . . . . 5 ⊢ ((𝐺 ∈ Grp ∧ 𝐵 ∈ Fin) → (𝑋 ∈ {𝑥 ∈ 𝐵 ∣ ran (𝑛 ∈ ℤ ↦ (𝑛(.g‘𝐺)𝑥)) = 𝐵} ↔ (𝑋 ∈ 𝐵 ∧ (𝑂‘𝑋) = (♯‘𝐵)))) |
| 16 | 1, 12, 15 | syl2anc 584 | . . . 4 ⊢ (𝜑 → (𝑋 ∈ {𝑥 ∈ 𝐵 ∣ ran (𝑛 ∈ ℤ ↦ (𝑛(.g‘𝐺)𝑥)) = 𝐵} ↔ (𝑋 ∈ 𝐵 ∧ (𝑂‘𝑋) = (♯‘𝐵)))) |
| 17 | 2, 3, 16 | mpbir2and 713 | . . 3 ⊢ (𝜑 → 𝑋 ∈ {𝑥 ∈ 𝐵 ∣ ran (𝑛 ∈ ℤ ↦ (𝑛(.g‘𝐺)𝑥)) = 𝐵}) |
| 18 | 17 | ne0d 4313 | . 2 ⊢ (𝜑 → {𝑥 ∈ 𝐵 ∣ ran (𝑛 ∈ ℤ ↦ (𝑛(.g‘𝐺)𝑥)) = 𝐵} ≠ ∅) |
| 19 | 4, 13, 14 | iscyg2 19818 | . 2 ⊢ (𝐺 ∈ CycGrp ↔ (𝐺 ∈ Grp ∧ {𝑥 ∈ 𝐵 ∣ ran (𝑛 ∈ ℤ ↦ (𝑛(.g‘𝐺)𝑥)) = 𝐵} ≠ ∅)) |
| 20 | 1, 18, 19 | sylanbrc 583 | 1 ⊢ (𝜑 → 𝐺 ∈ CycGrp) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ≠ wne 2927 {crab 3411 Vcvv 3455 ∅c0 4304 ↦ cmpt 5196 ran crn 5647 ‘cfv 6519 (class class class)co 7394 Fincfn 8922 ℕ0cn0 12458 ℤcz 12545 ♯chash 14305 Basecbs 17185 Grpcgrp 18871 .gcmg 19005 odcod 19460 CycGrpccyg 19813 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-rep 5242 ax-sep 5259 ax-nul 5269 ax-pow 5328 ax-pr 5395 ax-un 7718 ax-inf2 9612 ax-cnex 11142 ax-resscn 11143 ax-1cn 11144 ax-icn 11145 ax-addcl 11146 ax-addrcl 11147 ax-mulcl 11148 ax-mulrcl 11149 ax-mulcom 11150 ax-addass 11151 ax-mulass 11152 ax-distr 11153 ax-i2m1 11154 ax-1ne0 11155 ax-1rid 11156 ax-rnegex 11157 ax-rrecex 11158 ax-cnre 11159 ax-pre-lttri 11160 ax-pre-lttrn 11161 ax-pre-ltadd 11162 ax-pre-mulgt0 11163 ax-pre-sup 11164 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2880 df-ne 2928 df-nel 3032 df-ral 3047 df-rex 3056 df-rmo 3357 df-reu 3358 df-rab 3412 df-v 3457 df-sbc 3762 df-csb 3871 df-dif 3925 df-un 3927 df-in 3929 df-ss 3939 df-pss 3942 df-nul 4305 df-if 4497 df-pw 4573 df-sn 4598 df-pr 4600 df-op 4604 df-uni 4880 df-int 4919 df-iun 4965 df-br 5116 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5541 df-eprel 5546 df-po 5554 df-so 5555 df-fr 5599 df-se 5600 df-we 5601 df-xp 5652 df-rel 5653 df-cnv 5654 df-co 5655 df-dm 5656 df-rn 5657 df-res 5658 df-ima 5659 df-pred 6282 df-ord 6343 df-on 6344 df-lim 6345 df-suc 6346 df-iota 6472 df-fun 6521 df-fn 6522 df-f 6523 df-f1 6524 df-fo 6525 df-f1o 6526 df-fv 6527 df-isom 6528 df-riota 7351 df-ov 7397 df-oprab 7398 df-mpo 7399 df-om 7851 df-1st 7977 df-2nd 7978 df-frecs 8269 df-wrecs 8300 df-recs 8349 df-rdg 8387 df-1o 8443 df-oadd 8447 df-omul 8448 df-er 8682 df-map 8805 df-en 8923 df-dom 8924 df-sdom 8925 df-fin 8926 df-sup 9411 df-inf 9412 df-oi 9481 df-card 9910 df-acn 9913 df-pnf 11228 df-mnf 11229 df-xr 11230 df-ltxr 11231 df-le 11232 df-sub 11425 df-neg 11426 df-div 11852 df-nn 12198 df-2 12260 df-3 12261 df-n0 12459 df-z 12546 df-uz 12810 df-rp 12966 df-fz 13482 df-fl 13766 df-mod 13844 df-seq 13977 df-exp 14037 df-hash 14306 df-cj 15075 df-re 15076 df-im 15077 df-sqrt 15211 df-abs 15212 df-dvds 16230 df-0g 17410 df-mgm 18573 df-sgrp 18652 df-mnd 18668 df-grp 18874 df-minusg 18875 df-sbg 18876 df-mulg 19006 df-od 19464 df-cyg 19814 |
| This theorem is referenced by: prmcyg 19830 lt6abl 19831 |
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