Theorem srabaseg 14579

Description: Base set of a subring algebra. (Contributed by Stefan O'Rear, 27-Nov-2014.) (Revised by Mario Carneiro, 4-Oct-2015.) (Revised by Thierry Arnoux, 16-Jun-2019.) (Revised by AV, 29-Oct-2024.)

Hypotheses

Ref	Expression
srapart.a	|- ( ph -> A = ( (subringAlg ` W ) ` S ) )
srapart.s	|- ( ph -> S C_ ( Base ` W ) )
srapart.ex	|- ( ph -> W e. X )

Assertion

Ref	Expression
srabaseg	|- ( ph -> ( Base ` W ) = ( Base ` A ) )

Proof of Theorem srabaseg

Step	Hyp	Ref	Expression
1		srapart.a	. 2 |- ( ph -> A = ( (subringAlg ` W ) ` S ) )
2		srapart.s	. 2 |- ( ph -> S C_ ( Base ` W ) )
3		srapart.ex	. 2 |- ( ph -> W e. X )
4		baseslid 13262	. 2 |- ( Base = Slot ( Base ` ndx ) /\ ( Base ` ndx ) e. NN )
5		scandxnbasendx 13359	. 2 |- (Scalar ` ndx ) =/= ( Base ` ndx )
6		vscandxnbasendx 13364	. 2 |- ( .s ` ndx ) =/= ( Base ` ndx )
7		ipndxnbasendx 13377	. 2 |- ( .i ` ndx ) =/= ( Base ` ndx )
8	1, 2, 3, 4, 5, 6, 7	sralemg 14578	1 |- ( ph -> ( Base ` W ) = ( Base ` A ) )

Syntax hints:   -> wi 4   = wceq 1398   e. wcel 2203   C_ wss 3210   ` cfv 5351   Basecbs 13204  subringAlg csra 14573

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 2205  ax-14 2206  ax-ext 2214  ax-coll 4224  ax-sep 4227  ax-pow 4286  ax-pr 4321  ax-un 4553  ax-setind 4658  ax-cnex 8217  ax-resscn 8218  ax-1cn 8219  ax-1re 8220  ax-icn 8221  ax-addcl 8222  ax-addrcl 8223  ax-mulcl 8224  ax-addcom 8226  ax-addass 8228  ax-i2m1 8231  ax-0lt1 8232  ax-0id 8234  ax-rnegex 8235  ax-pre-ltirr 8238  ax-pre-lttrn 8240  ax-pre-ltadd 8242

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-nel 2508  df-ral 2525  df-rex 2526  df-reu 2527  df-rab 2529  df-v 2814  df-sbc 3042  df-csb 3138  df-dif 3212  df-un 3214  df-in 3216  df-ss 3223  df-nul 3508  df-pw 3670  df-sn 3694  df-pr 3695  df-op 3697  df-uni 3914  df-int 3949  df-iun 3992  df-br 4109  df-opab 4171  df-mpt 4172  df-id 4413  df-xp 4754  df-rel 4755  df-cnv 4756  df-co 4757  df-dm 4758  df-rn 4759  df-res 4760  df-ima 4761  df-iota 5311  df-fun 5353  df-fn 5354  df-f 5355  df-f1 5356  df-fo 5357  df-f1o 5358  df-fv 5359  df-ov 6052  df-oprab 6053  df-mpo 6054  df-pnf 8309  df-mnf 8310  df-ltxr 8312  df-inn 9237  df-2 9295  df-3 9296  df-4 9297  df-5 9298  df-6 9299  df-7 9300  df-8 9301  df-ndx 13207  df-slot 13208  df-base 13210  df-sets 13211  df-iress 13212  df-mulr 13296  df-sca 13298  df-vsca 13299  df-ip 13300  df-sra 14575

This theorem is referenced by:  sratopng  14587  sraring  14589  sralmod  14590  sralmod0g  14591  rlmbasg  14595