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Theorem rnrhmsubrg 14328
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
StepHypRef Expression
1 df-ima 4744 . . 3  |-  ( F
" ( Base `  M
) )  =  ran  ( F  |`  ( Base `  M ) )
2 eqid 2231 . . . . . . 7  |-  ( Base `  M )  =  (
Base `  M )
3 eqid 2231 . . . . . . 7  |-  ( Base `  N )  =  (
Base `  N )
42, 3rhmf 14239 . . . . . 6  |-  ( F  e.  ( M RingHom  N
)  ->  F :
( Base `  M ) --> ( Base `  N )
)
54ffnd 5490 . . . . 5  |-  ( F  e.  ( M RingHom  N
)  ->  F  Fn  ( Base `  M )
)
6 fnresdm 5448 . . . . 5  |-  ( F  Fn  ( Base `  M
)  ->  ( F  |`  ( Base `  M
) )  =  F )
75, 6syl 14 . . . 4  |-  ( F  e.  ( M RingHom  N
)  ->  ( F  |`  ( Base `  M
) )  =  F )
87rneqd 4967 . . 3  |-  ( F  e.  ( M RingHom  N
)  ->  ran  ( F  |`  ( Base `  M
) )  =  ran  F )
91, 8eqtr2id 2277 . 2  |-  ( F  e.  ( M RingHom  N
)  ->  ran  F  =  ( F " ( Base `  M ) ) )
10 rhmrcl1 14231 . . . 4  |-  ( F  e.  ( M RingHom  N
)  ->  M  e.  Ring )
112subrgid 14299 . . . 4  |-  ( M  e.  Ring  ->  ( Base `  M )  e.  (SubRing `  M ) )
1210, 11syl 14 . . 3  |-  ( F  e.  ( M RingHom  N
)  ->  ( Base `  M )  e.  (SubRing `  M ) )
13 rhmima 14327 . . 3  |-  ( ( F  e.  ( M RingHom  N )  /\  ( Base `  M )  e.  (SubRing `  M )
)  ->  ( F " ( Base `  M
) )  e.  (SubRing `  N ) )
1412, 13mpdan 421 . 2  |-  ( F  e.  ( M RingHom  N
)  ->  ( F " ( Base `  M
) )  e.  (SubRing `  N ) )
159, 14eqeltrd 2308 1  |-  ( F  e.  ( M RingHom  N
)  ->  ran  F  e.  (SubRing `  N )
)
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1398    e. wcel 2202   ran crn 4732    |` cres 4733   "cima 4734    Fn wfn 5328   ` cfv 5333  (class class class)co 6028   Basecbs 13143   Ringcrg 14071   RingHom crh 14226  SubRingcsubrg 14293
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 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2204  ax-14 2205  ax-ext 2213  ax-coll 4209  ax-sep 4212  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641  ax-cnex 8166  ax-resscn 8167  ax-1cn 8168  ax-1re 8169  ax-icn 8170  ax-addcl 8171  ax-addrcl 8172  ax-mulcl 8173  ax-addcom 8175  ax-addass 8177  ax-i2m1 8180  ax-0lt1 8181  ax-0id 8183  ax-rnegex 8184  ax-pre-ltirr 8187  ax-pre-lttrn 8189  ax-pre-ltadd 8191
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-nel 2499  df-ral 2516  df-rex 2517  df-reu 2518  df-rmo 2519  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-nul 3497  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-iun 3977  df-br 4094  df-opab 4156  df-mpt 4157  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341  df-riota 5981  df-ov 6031  df-oprab 6032  df-mpo 6033  df-1st 6312  df-2nd 6313  df-map 6862  df-pnf 8259  df-mnf 8260  df-ltxr 8262  df-inn 9187  df-2 9245  df-3 9246  df-ndx 13146  df-slot 13147  df-base 13149  df-sets 13150  df-iress 13151  df-plusg 13234  df-mulr 13235  df-0g 13402  df-mgm 13500  df-sgrp 13546  df-mnd 13561  df-mhm 13603  df-submnd 13604  df-grp 13647  df-minusg 13648  df-subg 13818  df-ghm 13889  df-mgp 13996  df-ur 14035  df-ring 14073  df-rhm 14228  df-subrg 14295
This theorem is referenced by: (None)
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