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Mirrors > Home > MPE Home > Th. List > cycsubggenodd | Structured version Visualization version GIF version |
Description: Relationship between the order of a subgroup and the order of a generator of the subgroup. (Contributed by Rohan Ridenour, 3-Aug-2023.) |
Ref | Expression |
---|---|
cycsubggenodd.1 | ⊢ 𝐵 = (Base‘𝐺) |
cycsubggenodd.2 | ⊢ · = (.g‘𝐺) |
cycsubggenodd.3 | ⊢ 𝑂 = (od‘𝐺) |
cycsubggenodd.4 | ⊢ (𝜑 → 𝐺 ∈ Grp) |
cycsubggenodd.5 | ⊢ (𝜑 → 𝐴 ∈ 𝐵) |
cycsubggenodd.6 | ⊢ (𝜑 → 𝐶 = ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴))) |
Ref | Expression |
---|---|
cycsubggenodd | ⊢ (𝜑 → (𝑂‘𝐴) = if(𝐶 ∈ Fin, (♯‘𝐶), 0)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cycsubggenodd.4 | . . 3 ⊢ (𝜑 → 𝐺 ∈ Grp) | |
2 | cycsubggenodd.5 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝐵) | |
3 | cycsubggenodd.1 | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
4 | cycsubggenodd.3 | . . . 4 ⊢ 𝑂 = (od‘𝐺) | |
5 | cycsubggenodd.2 | . . . 4 ⊢ · = (.g‘𝐺) | |
6 | eqid 2820 | . . . 4 ⊢ (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴)) = (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴)) | |
7 | 3, 4, 5, 6 | dfod2 18686 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝐵) → (𝑂‘𝐴) = if(ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴)) ∈ Fin, (♯‘ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴))), 0)) |
8 | 1, 2, 7 | syl2anc 586 | . 2 ⊢ (𝜑 → (𝑂‘𝐴) = if(ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴)) ∈ Fin, (♯‘ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴))), 0)) |
9 | cycsubggenodd.6 | . . . . 5 ⊢ (𝜑 → 𝐶 = ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴))) | |
10 | 9 | eqcomd 2826 | . . . 4 ⊢ (𝜑 → ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴)) = 𝐶) |
11 | 10 | eleq1d 2896 | . . 3 ⊢ (𝜑 → (ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴)) ∈ Fin ↔ 𝐶 ∈ Fin)) |
12 | 10 | fveq2d 6667 | . . 3 ⊢ (𝜑 → (♯‘ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴))) = (♯‘𝐶)) |
13 | 11, 12 | ifbieq1d 4483 | . 2 ⊢ (𝜑 → if(ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴)) ∈ Fin, (♯‘ran (𝑛 ∈ ℤ ↦ (𝑛 · 𝐴))), 0) = if(𝐶 ∈ Fin, (♯‘𝐶), 0)) |
14 | 8, 13 | eqtrd 2855 | 1 ⊢ (𝜑 → (𝑂‘𝐴) = if(𝐶 ∈ Fin, (♯‘𝐶), 0)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1536 ∈ wcel 2113 ifcif 4460 ↦ cmpt 5139 ran crn 5549 ‘cfv 6348 (class class class)co 7149 Fincfn 8502 0cc0 10530 ℤcz 11975 ♯chash 13687 Basecbs 16478 Grpcgrp 18098 .gcmg 18219 odcod 18647 |
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 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2792 ax-rep 5183 ax-sep 5196 ax-nul 5203 ax-pow 5259 ax-pr 5323 ax-un 7454 ax-inf2 9097 ax-cnex 10586 ax-resscn 10587 ax-1cn 10588 ax-icn 10589 ax-addcl 10590 ax-addrcl 10591 ax-mulcl 10592 ax-mulrcl 10593 ax-mulcom 10594 ax-addass 10595 ax-mulass 10596 ax-distr 10597 ax-i2m1 10598 ax-1ne0 10599 ax-1rid 10600 ax-rnegex 10601 ax-rrecex 10602 ax-cnre 10603 ax-pre-lttri 10604 ax-pre-lttrn 10605 ax-pre-ltadd 10606 ax-pre-mulgt0 10607 ax-pre-sup 10608 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1083 df-3an 1084 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2799 df-cleq 2813 df-clel 2892 df-nfc 2962 df-ne 3016 df-nel 3123 df-ral 3142 df-rex 3143 df-reu 3144 df-rmo 3145 df-rab 3146 df-v 3493 df-sbc 3769 df-csb 3877 df-dif 3932 df-un 3934 df-in 3936 df-ss 3945 df-pss 3947 df-nul 4285 df-if 4461 df-pw 4534 df-sn 4561 df-pr 4563 df-tp 4565 df-op 4567 df-uni 4832 df-int 4870 df-iun 4914 df-br 5060 df-opab 5122 df-mpt 5140 df-tr 5166 df-id 5453 df-eprel 5458 df-po 5467 df-so 5468 df-fr 5507 df-se 5508 df-we 5509 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-pred 6141 df-ord 6187 df-on 6188 df-lim 6189 df-suc 6190 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-isom 6357 df-riota 7107 df-ov 7152 df-oprab 7153 df-mpo 7154 df-om 7574 df-1st 7682 df-2nd 7683 df-wrecs 7940 df-recs 8001 df-rdg 8039 df-1o 8095 df-oadd 8099 df-omul 8100 df-er 8282 df-map 8401 df-en 8503 df-dom 8504 df-sdom 8505 df-fin 8506 df-sup 8899 df-inf 8900 df-oi 8967 df-card 9361 df-acn 9364 df-pnf 10670 df-mnf 10671 df-xr 10672 df-ltxr 10673 df-le 10674 df-sub 10865 df-neg 10866 df-div 11291 df-nn 11632 df-2 11694 df-3 11695 df-n0 11892 df-z 11976 df-uz 12238 df-rp 12384 df-fz 12890 df-fl 13159 df-mod 13235 df-seq 13367 df-exp 13427 df-hash 13688 df-cj 14453 df-re 14454 df-im 14455 df-sqrt 14589 df-abs 14590 df-dvds 15603 df-0g 16710 df-mgm 17847 df-sgrp 17896 df-mnd 17907 df-grp 18101 df-minusg 18102 df-sbg 18103 df-mulg 18220 df-od 18651 |
This theorem is referenced by: ablsimpgfind 19227 fincygsubgodd 19229 |
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