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Theorem circsubm 25442

Description: The circle group 𝑇 is a submonoid of the multiplicative group of ℂ_fld. (Contributed by Thierry Arnoux, 26-Jan-2020.)

**Hypotheses**
Ref	Expression
circgrp.1	⊢ 𝐶 = (^◡abs “ {1})
circgrp.2	⊢ 𝑇 = ((mulGrp‘ℂ_fld) ↾_s 𝐶)

**Assertion**
Ref	Expression
circsubm	⊢ 𝐶 ∈ (SubMnd‘(mulGrp‘ℂ_fld))

Proof of Theorem circsubm Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		oveq2 7221	. . . . . . 7 ⊢ (𝑥 = 𝑦 → (i · 𝑥) = (i · 𝑦))
2	1	fveq2d 6721	. . . . . 6 ⊢ (𝑥 = 𝑦 → (exp‘(i · 𝑥)) = (exp‘(i · 𝑦)))
3	2	cbvmptv 5158	. . . . 5 ⊢ (𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥))) = (𝑦 ∈ ℝ ↦ (exp‘(i · 𝑦)))
4		circgrp.1	. . . . 5 ⊢ 𝐶 = (^◡abs “ {1})
5	3, 4	efifo 25436	. . . 4 ⊢ (𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥))):ℝ–onto→𝐶
6		forn 6636	. . . 4 ⊢ ((𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥))):ℝ–onto→𝐶 → ran (𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥))) = 𝐶)
7	5, 6	ax-mp 5	. . 3 ⊢ ran (𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥))) = 𝐶
8	7	eqcomi 2746	. 2 ⊢ 𝐶 = ran (𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥)))
9	8	oveq2i 7224	. . . 4 ⊢ ((mulGrp‘ℂ_fld) ↾_s 𝐶) = ((mulGrp‘ℂ_fld) ↾_s ran (𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥))))
10		ax-icn 10788	. . . . 5 ⊢ i ∈ ℂ
11	10	a1i 11	. . . 4 ⊢ (⊤ → i ∈ ℂ)
12		resubdrg 20570	. . . . . . 7 ⊢ (ℝ ∈ (SubRing‘ℂ_fld) ∧ ℝ_fld ∈ DivRing)
13	12	simpli 487	. . . . . 6 ⊢ ℝ ∈ (SubRing‘ℂ_fld)
14		subrgsubg 19806	. . . . . 6 ⊢ (ℝ ∈ (SubRing‘ℂ_fld) → ℝ ∈ (SubGrp‘ℂ_fld))
15	13, 14	ax-mp 5	. . . . 5 ⊢ ℝ ∈ (SubGrp‘ℂ_fld)
16	15	a1i 11	. . . 4 ⊢ (⊤ → ℝ ∈ (SubGrp‘ℂ_fld))
17	3, 9, 11, 16	efsubm 25440	. . 3 ⊢ (⊤ → ran (𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥))) ∈ (SubMnd‘(mulGrp‘ℂ_fld)))
18	17	mptru 1550	. 2 ⊢ ran (𝑥 ∈ ℝ ↦ (exp‘(i · 𝑥))) ∈ (SubMnd‘(mulGrp‘ℂ_fld))
19	8, 18	eqeltri 2834	1 ⊢ 𝐶 ∈ (SubMnd‘(mulGrp‘ℂ_fld))

Colors of variables: wff setvar class

Syntax hints: = wceq 1543 ⊤wtru 1544 ∈ wcel 2110 {csn 4541 ↦ cmpt 5135 ^◡ccnv 5550 ran crn 5552 “ cima 5554 –onto→wfo 6378 ‘cfv 6380 (class class class)co 7213 ℂcc 10727 ℝcr 10728 1c1 10730 ici 10731 · cmul 10734 abscabs 14797 expce 15623 ↾_s cress 16784 SubMndcsubmnd 18217 SubGrpcsubg 18537 mulGrpcmgp 19504 DivRingcdr 19767 SubRingcsubrg 19796 ℂ_fldccnfld 20363 ℝ_fldcrefld 20566

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-rep 5179 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 ax-inf2 9256 ax-cnex 10785 ax-resscn 10786 ax-1cn 10787 ax-icn 10788 ax-addcl 10789 ax-addrcl 10790 ax-mulcl 10791 ax-mulrcl 10792 ax-mulcom 10793 ax-addass 10794 ax-mulass 10795 ax-distr 10796 ax-i2m1 10797 ax-1ne0 10798 ax-1rid 10799 ax-rnegex 10800 ax-rrecex 10801 ax-cnre 10802 ax-pre-lttri 10803 ax-pre-lttrn 10804 ax-pre-ltadd 10805 ax-pre-mulgt0 10806 ax-pre-sup 10807 ax-addf 10808 ax-mulf 10809

This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3066 df-rex 3067 df-reu 3068 df-rmo 3069 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-pss 3885 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-tp 4546 df-op 4548 df-uni 4820 df-int 4860 df-iun 4906 df-iin 4907 df-br 5054 df-opab 5116 df-mpt 5136 df-tr 5162 df-id 5455 df-eprel 5460 df-po 5468 df-so 5469 df-fr 5509 df-se 5510 df-we 5511 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-pred 6160 df-ord 6216 df-on 6217 df-lim 6218 df-suc 6219 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-isom 6389 df-riota 7170 df-ov 7216 df-oprab 7217 df-mpo 7218 df-of 7469 df-om 7645 df-1st 7761 df-2nd 7762 df-supp 7904 df-tpos 7968 df-wrecs 8047 df-recs 8108 df-rdg 8146 df-1o 8202 df-2o 8203 df-er 8391 df-map 8510 df-pm 8511 df-ixp 8579 df-en 8627 df-dom 8628 df-sdom 8629 df-fin 8630 df-fsupp 8986 df-fi 9027 df-sup 9058 df-inf 9059 df-oi 9126 df-card 9555 df-pnf 10869 df-mnf 10870 df-xr 10871 df-ltxr 10872 df-le 10873 df-sub 11064 df-neg 11065 df-div 11490 df-nn 11831 df-2 11893 df-3 11894 df-4 11895 df-5 11896 df-6 11897 df-7 11898 df-8 11899 df-9 11900 df-n0 12091 df-z 12177 df-dec 12294 df-uz 12439 df-q 12545 df-rp 12587 df-xneg 12704 df-xadd 12705 df-xmul 12706 df-ioo 12939 df-ioc 12940 df-ico 12941 df-icc 12942 df-fz 13096 df-fzo 13239 df-fl 13367 df-mod 13443 df-seq 13575 df-exp 13636 df-fac 13840 df-bc 13869 df-hash 13897 df-shft 14630 df-cj 14662 df-re 14663 df-im 14664 df-sqrt 14798 df-abs 14799 df-limsup 15032 df-clim 15049 df-rlim 15050 df-sum 15250 df-ef 15629 df-sin 15631 df-cos 15632 df-pi 15634 df-struct 16700 df-sets 16717 df-slot 16735 df-ndx 16745 df-base 16761 df-ress 16785 df-plusg 16815 df-mulr 16816 df-starv 16817 df-sca 16818 df-vsca 16819 df-ip 16820 df-tset 16821 df-ple 16822 df-ds 16824 df-unif 16825 df-hom 16826 df-cco 16827 df-rest 16927 df-topn 16928 df-0g 16946 df-gsum 16947 df-topgen 16948 df-pt 16949 df-prds 16952 df-xrs 17007 df-qtop 17012 df-imas 17013 df-xps 17015 df-mre 17089 df-mrc 17090 df-acs 17092 df-mgm 18114 df-sgrp 18163 df-mnd 18174 df-submnd 18219 df-grp 18368 df-minusg 18369 df-mulg 18489 df-subg 18540 df-cntz 18711 df-cmn 19172 df-abl 19173 df-mgp 19505 df-ur 19517 df-ring 19564 df-cring 19565 df-oppr 19641 df-dvdsr 19659 df-unit 19660 df-invr 19690 df-dvr 19701 df-drng 19769 df-subrg 19798 df-psmet 20355 df-xmet 20356 df-met 20357 df-bl 20358 df-mopn 20359 df-fbas 20360 df-fg 20361 df-cnfld 20364 df-refld 20567 df-top 21791 df-topon 21808 df-topsp 21830 df-bases 21843 df-cld 21916 df-ntr 21917 df-cls 21918 df-nei 21995 df-lp 22033 df-perf 22034 df-cn 22124 df-cnp 22125 df-haus 22212 df-tx 22459 df-hmeo 22652 df-fil 22743 df-fm 22835 df-flim 22836 df-flf 22837 df-xms 23218 df-ms 23219 df-tms 23220 df-cncf 23775 df-limc 24763 df-dv 24764

This theorem is referenced by: (None)

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