| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > odhash | Structured version Visualization version GIF version | ||
| Description: An element of zero order generates an infinite subgroup. (Contributed by Stefan O'Rear, 12-Sep-2015.) |
| Ref | Expression |
|---|---|
| odhash.x | ⊢ 𝑋 = (Base‘𝐺) |
| odhash.o | ⊢ 𝑂 = (od‘𝐺) |
| odhash.k | ⊢ 𝐾 = (mrCls‘(SubGrp‘𝐺)) |
| Ref | Expression |
|---|---|
| odhash | ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋 ∧ (𝑂‘𝐴) = 0) → (♯‘(𝐾‘{𝐴})) = +∞) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | odhash.x | . . . 4 ⊢ 𝑋 = (Base‘𝐺) | |
| 2 | eqid 2765 | . . . 4 ⊢ (.g‘𝐺) = (.g‘𝐺) | |
| 3 | odhash.o | . . . 4 ⊢ 𝑂 = (od‘𝐺) | |
| 4 | odhash.k | . . . 4 ⊢ 𝐾 = (mrCls‘(SubGrp‘𝐺)) | |
| 5 | 1, 2, 3, 4 | odf1o1 19691 | . . 3 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋 ∧ (𝑂‘𝐴) = 0) → (𝑥 ∈ ℤ ↦ (𝑥(.g‘𝐺)𝐴)):ℤ–1-1-onto→(𝐾‘{𝐴})) |
| 6 | zex 12620 | . . . 4 ⊢ ℤ ∈ V | |
| 7 | 6 | f1oen 8976 | . . 3 ⊢ ((𝑥 ∈ ℤ ↦ (𝑥(.g‘𝐺)𝐴)):ℤ–1-1-onto→(𝐾‘{𝐴}) → ℤ ≈ (𝐾‘{𝐴})) |
| 8 | hasheni 14407 | . . 3 ⊢ (ℤ ≈ (𝐾‘{𝐴}) → (♯‘ℤ) = (♯‘(𝐾‘{𝐴}))) | |
| 9 | 5, 7, 8 | 3syl 19 | . 2 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋 ∧ (𝑂‘𝐴) = 0) → (♯‘ℤ) = (♯‘(𝐾‘{𝐴}))) |
| 10 | ominf 9232 | . . . 4 ⊢ ¬ ω ∈ Fin | |
| 11 | znnen 16295 | . . . . . 6 ⊢ ℤ ≈ ℕ | |
| 12 | nnenom 14039 | . . . . . 6 ⊢ ℕ ≈ ω | |
| 13 | 11, 12 | entri 9012 | . . . . 5 ⊢ ℤ ≈ ω |
| 14 | enfi 9179 | . . . . 5 ⊢ (ℤ ≈ ω → (ℤ ∈ Fin ↔ ω ∈ Fin)) | |
| 15 | 13, 14 | ax-mp 5 | . . . 4 ⊢ (ℤ ∈ Fin ↔ ω ∈ Fin) |
| 16 | 10, 15 | mtbir 326 | . . 3 ⊢ ¬ ℤ ∈ Fin |
| 17 | hashinf 14394 | . . 3 ⊢ ((ℤ ∈ V ∧ ¬ ℤ ∈ Fin) → (♯‘ℤ) = +∞) | |
| 18 | 6, 16, 17 | mp2an 705 | . 2 ⊢ (♯‘ℤ) = +∞ |
| 19 | 9, 18 | eqtr3di 2815 | 1 ⊢ ((𝐺 ∈ Grp ∧ 𝐴 ∈ 𝑋 ∧ (𝑂‘𝐴) = 0) → (♯‘(𝐾‘{𝐴})) = +∞) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ↔ wb 209 ∧ w3a 1103 = wceq 1570 ∈ wcel 2146 Vcvv 3457 {csn 4591 class class class wbr 5111 ↦ cmpt 5194 –1-1-onto→wf1o 6540 ‘cfv 6541 (class class class)co 7420 ωcom 7869 ≈ cen 8947 Fincfn 8950 0cc0 11120 +∞cpnf 11260 ℕcn 12253 ℤcz 12611 ♯chash 14389 Basecbs 17296 mrClscmrc 17662 Grpcgrp 19049 .gcmg 19182 SubGrpcsubg 19235 odcod 19643 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7743 ax-inf2 9618 ax-cnex 11176 ax-resscn 11177 ax-1cn 11178 ax-icn 11179 ax-addcl 11180 ax-addrcl 11181 ax-mulcl 11182 ax-mulrcl 11183 ax-mulcom 11184 ax-addass 11185 ax-mulass 11186 ax-distr 11187 ax-i2m1 11188 ax-1ne0 11189 ax-1rid 11190 ax-rnegex 11191 ax-rrecex 11192 ax-cnre 11193 ax-pre-lttri 11194 ax-pre-lttrn 11195 ax-pre-ltadd 11196 ax-pre-mulgt0 11197 ax-pre-sup 11198 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-iin 4961 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-se 5617 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-isom 6550 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7870 df-1st 7993 df-2nd 7994 df-frecs 8285 df-wrecs 8316 df-recs 8365 df-rdg 8404 df-1o 8460 df-2o 8461 df-oadd 8464 df-omul 8465 df-er 8701 df-map 8833 df-en 8951 df-dom 8952 df-sdom 8953 df-fin 8954 df-sup 9410 df-inf 9411 df-oi 9480 df-card 9942 df-acn 9945 df-pnf 11265 df-mnf 11266 df-xr 11267 df-ltxr 11268 df-le 11269 df-sub 11463 df-neg 11464 df-div 11892 df-nn 12254 df-2 12323 df-3 12324 df-n0 12525 df-z 12612 df-uz 12884 df-rp 13038 df-fz 13557 df-fl 13848 df-mod 13926 df-seq 14061 df-exp 14121 df-hash 14390 df-cj 15179 df-re 15180 df-im 15181 df-sqrt 15315 df-abs 15316 df-dvds 16338 df-sets 17251 df-slot 17269 df-ndx 17281 df-base 17297 df-ress 17318 df-plusg 17350 df-0g 17521 df-mre 17665 df-mrc 17666 df-acs 17668 df-mgm 18725 df-sgrp 18814 df-mnd 18830 df-submnd 18884 df-grp 19052 df-minusg 19053 df-sbg 19054 df-mulg 19183 df-subg 19238 df-od 19647 |
| This theorem is used by: odhash3 19695 |
| Copyright terms: Public domain | W3C validator |