database - Need to find a minimal basis -

database - Need to find a minimal basis -

i'm struggling finding minimal basis given relation , fd's. can please confirm i'm doing right?

i've got r(a, b, c, d, e, f, g)

a -> g e -> f,g c,d -> b b -> e c,d ->

after checking each fd there nil remove, minimal basis

a -> g e -> f e -> g c,d -> b b -> e c,d ->

and key (c,d) (c,d)+ = (c,d,a,b,e,f,g)

many thanks

in american english, think term minimal cover.

cd candidate key in r.

i'm not sure mean "checking each fd", result right.

database