Theorem cpmatpmat 20515

Description: A constant polynomial matrix is a polynomial matrix. (Contributed by AV, 16-Nov-2019.)

Hypotheses

Ref	Expression
cpmat.s	|- S = ( N ConstPolyMat R )
cpmat.p	|- P = (Poly1 ` R )
cpmat.c	|- C = ( N Mat P )
cpmat.b	|- B = ( Base ` C )

Assertion

Ref	Expression
cpmatpmat	|- ( ( N e. Fin /\ R e. V /\ M e. S ) -> M e. B )

Proof of Theorem cpmatpmat

Dummy variables m i j k are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		cpmat.s	. . . . 5 |- S = ( N ConstPolyMat R )
2		cpmat.p	. . . . 5 |- P = (Poly1 ` R )
3		cpmat.c	. . . . 5 |- C = ( N Mat P )
4		cpmat.b	. . . . 5 |- B = ( Base ` C )
5	1, 2, 3, 4	cpmat 20514	. . . 4 |- ( ( N e. Fin /\ R e. V ) -> S = { m e. B | A. i e. N A. j e. N A. k e. NN ( (coe1 ` ( i m j ) ) ` k ) = ( 0g ` R ) } )
6	5	eleq2d 2687	. . 3 |- ( ( N e. Fin /\ R e. V ) -> ( M e. S <-> M e. { m e. B | A. i e. N A. j e. N A. k e. NN ( (coe1 ` ( i m j ) ) ` k ) = ( 0g ` R ) } ) )
7		elrabi 3359	. . 3 |- ( M e. { m e. B | A. i e. N A. j e. N A. k e. NN ( (coe1 ` ( i m j ) ) ` k ) = ( 0g ` R ) } -> M e. B )
8	6, 7	syl6bi 243	. 2 |- ( ( N e. Fin /\ R e. V ) -> ( M e. S -> M e. B ) )
9	8	3impia 1261	1 |- ( ( N e. Fin /\ R e. V /\ M e. S ) -> M e. B )

Syntax hints:   -> wi 4   /\ wa 384   /\ w3a 1037   = wceq 1483   e. wcel 1990   A.wral 2912   {crab 2916   ` cfv 5888  (class class class)co 6650   Fincfn 7955   NNcn 11020   Basecbs 15857   0gc0g 16100  Poly₁cpl1 19547  coe₁cco1 19548   Mat cmat 20213   ConstPolyMat ccpmat 20508

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pr 4906

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-sbc 3436  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-br 4654  df-opab 4713  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-iota 5851  df-fun 5890  df-fv 5896  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-cpmat 20511

This theorem is referenced by:  cpmatelimp  20517  cpmatelimp2  20519  cpmatacl  20521  cpmatinvcl  20522  cpmatmcl  20524  cpm2mf  20557  m2cpminvid2lem  20559  m2cpminvid2  20560  m2cpmfo  20561  m2cpmrngiso  20563