Theorem 2idlvalg 13999

Description: Definition of a two-sided ideal. (Contributed by Mario Carneiro, 14-Jun-2015.)

Hypotheses

Ref	Expression
2idlval.i	|- I = (LIdeal ` R )
2idlval.o	|- O = (oppr ` R )
2idlval.j	|- J = (LIdeal ` O )
2idlval.t	|- T = (2Ideal ` R )

Assertion

Ref	Expression
2idlvalg	|- ( R e. V -> T = ( I i^i J ) )

Proof of Theorem 2idlvalg

Dummy variable r is distinct from all other variables.

Step	Hyp	Ref	Expression
1		2idlval.t	. 2 |- T = (2Ideal ` R )
2		df-2idl 13996	. . 3 |- 2Ideal = ( r e. _V |-> ( (LIdeal ` r ) i^i (LIdeal ` (oppr ` r ) ) ) )
3		fveq2 5554	. . . . 5 |- ( r = R -> (LIdeal ` r ) = (LIdeal ` R ) )
4		2idlval.i	. . . . 5 |- I = (LIdeal ` R )
5	3, 4	eqtr4di 2244	. . . 4 |- ( r = R -> (LIdeal ` r ) = I )
6		fveq2 5554	. . . . . . 7 |- ( r = R -> (oppr ` r ) = (oppr ` R ) )
7		2idlval.o	. . . . . . 7 |- O = (oppr ` R )
8	6, 7	eqtr4di 2244	. . . . . 6 |- ( r = R -> (oppr ` r ) = O )
9	8	fveq2d 5558	. . . . 5 |- ( r = R -> (LIdeal ` (oppr ` r ) ) = (LIdeal ` O ) )
10		2idlval.j	. . . . 5 |- J = (LIdeal ` O )
11	9, 10	eqtr4di 2244	. . . 4 |- ( r = R -> (LIdeal ` (oppr ` r ) ) = J )
12	5, 11	ineq12d 3361	. . 3 |- ( r = R -> ( (LIdeal ` r ) i^i (LIdeal ` (oppr ` r ) ) ) = ( I i^i J ) )
13		elex 2771	. . 3 |- ( R e. V -> R e. _V )
14		lidlex 13969	. . . . 5 |- ( R e. V -> (LIdeal ` R ) e. _V )
15	4, 14	eqeltrid 2280	. . . 4 |- ( R e. V -> I e. _V )
16		inex1g 4165	. . . 4 |- ( I e. _V -> ( I i^i J ) e. _V )
17	15, 16	syl 14	. . 3 |- ( R e. V -> ( I i^i J ) e. _V )
18	2, 12, 13, 17	fvmptd3 5651	. 2 |- ( R e. V -> (2Ideal ` R ) = ( I i^i J ) )
19	1, 18	eqtrid 2238	1 |- ( R e. V -> T = ( I i^i J ) )

Syntax hints:   -> wi 4   = wceq 1364   e. wcel 2164   _Vcvv 2760   i^i cin 3152   ` cfv 5254  opp_rcoppr 13563  LIdealclidl 13963  2Idealc2idl 13995

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 615  ax-in2 616  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2166  ax-14 2167  ax-ext 2175  ax-coll 4144  ax-sep 4147  ax-pow 4203  ax-pr 4238  ax-un 4464  ax-setind 4569  ax-cnex 7963  ax-resscn 7964  ax-1re 7966  ax-addrcl 7969

This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1472  df-sb 1774  df-eu 2045  df-mo 2046  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ne 2365  df-ral 2477  df-rex 2478  df-reu 2479  df-rab 2481  df-v 2762  df-sbc 2986  df-csb 3081  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-pw 3603  df-sn 3624  df-pr 3625  df-op 3627  df-uni 3836  df-int 3871  df-iun 3914  df-br 4030  df-opab 4091  df-mpt 4092  df-id 4324  df-xp 4665  df-rel 4666  df-cnv 4667  df-co 4668  df-dm 4669  df-rn 4670  df-res 4671  df-ima 4672  df-iota 5215  df-fun 5256  df-fn 5257  df-f 5258  df-f1 5259  df-fo 5260  df-f1o 5261  df-fv 5262  df-ov 5921  df-oprab 5922  df-mpo 5923  df-inn 8983  df-2 9041  df-3 9042  df-4 9043  df-5 9044  df-6 9045  df-7 9046  df-8 9047  df-ndx 12621  df-slot 12622  df-base 12624  df-sets 12625  df-iress 12626  df-mulr 12709  df-sca 12711  df-vsca 12712  df-ip 12713  df-lssm 13849  df-sra 13931  df-rgmod 13932  df-lidl 13965  df-2idl 13996

This theorem is referenced by:  2idlelb  14001  2idllidld  14002  2idlridld  14003  2idl0  14008  2idl1  14009  qus1  14022  crng2idl  14027