Definition df-doch 36637

Description: Define subspace orthocomplement for DVecH vector space. Temporarily, we are using the range of the isomorphism instead of the set of closed subspaces. Later, when inner product is introduced, we will show that these are the same. (Contributed by NM, 14-Mar-2014.)

Assertion

Ref	Expression
df-doch	|- ocH = ( k e. _V |-> ( w e. ( LHyp ` k ) |-> ( x e. ~P ( Base ` ( ( DVecH ` k ) ` w ) ) |-> ( ( ( DIsoH ` k ) ` w ) ` ( ( oc ` k ) ` ( ( glb ` k ) ` { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) } ) ) ) ) ) )

Distinct variable group:   w, k, x, y

Detailed syntax breakdown of Definition df-doch

Step	Hyp	Ref	Expression
1		coch 36636	. 2 class ocH
2		vk	. . 3 setvar k
3		cvv 3200	. . 3 class _V
4		vw	. . . 4 setvar w
5	2	cv 1482	. . . . 5 class k
6		clh 35270	. . . . 5 class LHyp
7	5, 6	cfv 5888	. . . 4 class ( LHyp ` k )
8		vx	. . . . 5 setvar x
9	4	cv 1482	. . . . . . . 8 class w
10		cdvh 36367	. . . . . . . . 9 class DVecH
11	5, 10	cfv 5888	. . . . . . . 8 class ( DVecH ` k )
12	9, 11	cfv 5888	. . . . . . 7 class ( ( DVecH ` k ) ` w )
13		cbs 15857	. . . . . . 7 class Base
14	12, 13	cfv 5888	. . . . . 6 class ( Base ` ( ( DVecH ` k ) ` w ) )
15	14	cpw 4158	. . . . 5 class ~P ( Base ` ( ( DVecH ` k ) ` w ) )
16	8	cv 1482	. . . . . . . . . 10 class x
17		vy	. . . . . . . . . . . 12 setvar y
18	17	cv 1482	. . . . . . . . . . 11 class y
19		cdih 36517	. . . . . . . . . . . . 13 class DIsoH
20	5, 19	cfv 5888	. . . . . . . . . . . 12 class ( DIsoH ` k )
21	9, 20	cfv 5888	. . . . . . . . . . 11 class ( ( DIsoH ` k ) ` w )
22	18, 21	cfv 5888	. . . . . . . . . 10 class ( ( ( DIsoH ` k ) ` w ) ` y )
23	16, 22	wss 3574	. . . . . . . . 9 wff x C_ ( ( ( DIsoH ` k ) ` w ) ` y )
24	5, 13	cfv 5888	. . . . . . . . 9 class ( Base ` k )
25	23, 17, 24	crab 2916	. . . . . . . 8 class { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) }
26		cglb 16943	. . . . . . . . 9 class glb
27	5, 26	cfv 5888	. . . . . . . 8 class ( glb ` k )
28	25, 27	cfv 5888	. . . . . . 7 class ( ( glb ` k ) ` { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) } )
29		coc 15949	. . . . . . . 8 class oc
30	5, 29	cfv 5888	. . . . . . 7 class ( oc ` k )
31	28, 30	cfv 5888	. . . . . 6 class ( ( oc ` k ) ` ( ( glb ` k ) ` { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) } ) )
32	31, 21	cfv 5888	. . . . 5 class ( ( ( DIsoH ` k ) ` w ) ` ( ( oc ` k ) ` ( ( glb ` k ) ` { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) } ) ) )
33	8, 15, 32	cmpt 4729	. . . 4 class ( x e. ~P ( Base ` ( ( DVecH ` k ) ` w ) ) |-> ( ( ( DIsoH ` k ) ` w ) ` ( ( oc ` k ) ` ( ( glb ` k ) ` { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) } ) ) ) )
34	4, 7, 33	cmpt 4729	. . 3 class ( w e. ( LHyp ` k ) |-> ( x e. ~P ( Base ` ( ( DVecH ` k ) ` w ) ) |-> ( ( ( DIsoH ` k ) ` w ) ` ( ( oc ` k ) ` ( ( glb ` k ) ` { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) } ) ) ) ) )
35	2, 3, 34	cmpt 4729	. 2 class ( k e. _V |-> ( w e. ( LHyp ` k ) |-> ( x e. ~P ( Base ` ( ( DVecH ` k ) ` w ) ) |-> ( ( ( DIsoH ` k ) ` w ) ` ( ( oc ` k ) ` ( ( glb ` k ) ` { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) } ) ) ) ) ) )
36	1, 35	wceq 1483	1 wff ocH = ( k e. _V |-> ( w e. ( LHyp ` k ) |-> ( x e. ~P ( Base ` ( ( DVecH ` k ) ` w ) ) |-> ( ( ( DIsoH ` k ) ` w ) ` ( ( oc ` k ) ` ( ( glb ` k ) ` { y e. ( Base ` k ) | x C_ ( ( ( DIsoH ` k ) ` w ) ` y ) } ) ) ) ) ) )

This definition is referenced by:  dochffval  36638