Theorem rnrhmsubrg 14543

Description: The range of a ring homomorphism is a subring. (Contributed by SN, 18-Nov-2023.)

Assertion

Ref	Expression
rnrhmsubrg	|- ( F e. ( M RingHom N ) -> ran F e. (SubRing ` N ) )

Proof of Theorem rnrhmsubrg

Step	Hyp	Ref	Expression
1		df-ima 4785	. . 3 |- ( F " ( Base ` M ) ) = ran ( F |` ( Base ` M ) )
2		eqid 2238	. . . . . . 7 |- ( Base ` M ) = ( Base ` M )
3		eqid 2238	. . . . . . 7 |- ( Base ` N ) = ( Base ` N )
4	2, 3	rhmf 14453	. . . . . 6 |- ( F e. ( M RingHom N ) -> F : ( Base ` M ) --> ( Base ` N ) )
5	4	ffnd 5532	. . . . 5 |- ( F e. ( M RingHom N ) -> F Fn ( Base ` M ) )
6		fnresdm 5490	. . . . 5 |- ( F Fn ( Base ` M ) -> ( F |` ( Base ` M ) ) = F )
7	5, 6	syl 14	. . . 4 |- ( F e. ( M RingHom N ) -> ( F |` ( Base ` M ) ) = F )
8	7	rneqd 5009	. . 3 |- ( F e. ( M RingHom N ) -> ran ( F |` ( Base ` M ) ) = ran F )
9	1, 8	eqtr2id 2284	. 2 |- ( F e. ( M RingHom N ) -> ran F = ( F " ( Base ` M ) ) )
10		rhmrcl1 14445	. . . 4 |- ( F e. ( M RingHom N ) -> M e. Ring )
11	2	subrgid 14514	. . . 4 |- ( M e. Ring -> ( Base ` M ) e. (SubRing ` M ) )
12	10, 11	syl 14	. . 3 |- ( F e. ( M RingHom N ) -> ( Base ` M ) e. (SubRing ` M ) )
13		rhmima 14542	. . 3 |- ( ( F e. ( M RingHom N ) /\ ( Base ` M ) e. (SubRing ` M ) ) -> ( F " ( Base ` M ) ) e. (SubRing ` N ) )
14	12, 13	mpdan 425	. 2 |- ( F e. ( M RingHom N ) -> ( F " ( Base ` M ) ) e. (SubRing ` N ) )
15	9, 14	eqeltrd 2315	1 |- ( F e. ( M RingHom N ) -> ran F e. (SubRing ` N ) )

Syntax hints:   -> wi 4   = wceq 1402   e. wcel 2209   ran crn 4773   |` cres 4774   "cima 4775   Fn wfn 5370   ` cfv 5375  (class class class)co 6079   Basecbs 13335   Ringcrg 14283   RingHom crh 14440  SubRingcsubrg 14508

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4244  ax-sep 4247  ax-pow 4309  ax-pr 4344  ax-un 4576  ax-setind 4682  ax-cnex 8264  ax-resscn 8265  ax-1cn 8266  ax-1re 8267  ax-icn 8268  ax-addcl 8269  ax-addrcl 8270  ax-mulcl 8271  ax-addcom 8273  ax-addass 8275  ax-i2m1 8278  ax-0lt1 8279  ax-0id 8281  ax-rnegex 8282  ax-pre-ltirr 8285  ax-pre-lttrn 8287  ax-pre-ltadd 8289

This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rmo 2536  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3714  df-pr 3715  df-op 3717  df-uni 3934  df-int 3969  df-iun 4012  df-br 4129  df-opab 4191  df-mpt 4192  df-id 4436  df-xp 4778  df-rel 4779  df-cnv 4780  df-co 4781  df-dm 4782  df-rn 4783  df-res 4784  df-ima 4785  df-iota 5335  df-fun 5377  df-fn 5378  df-f 5379  df-f1 5380  df-fo 5381  df-f1o 5382  df-fv 5383  df-riota 6032  df-ov 6082  df-oprab 6083  df-mpo 6084  df-1st 6368  df-2nd 6369  df-map 6918  df-pnf 8356  df-mnf 8357  df-ltxr 8359  df-inn 9288  df-2 9346  df-3 9347  df-ndx 13338  df-slot 13339  df-base 13341  df-sets 13342  df-iress 13343  df-plusg 13427  df-mulr 13428  df-0g 13595  df-mgm 13659  df-sgrp 13700  df-mnd 13713  df-mhm 13749  df-submnd 13750  df-grp 13791  df-minusg 13792  df-subg 13956  df-ghm 14027  df-mgp 14201  df-ur 14246  df-ring 14285  df-rhm 14442  df-subrg 14510

This theorem is referenced by:  rnasclsubrg  15019