The definition in my book says:
> *The set of all functional dependencies logically implied by F is the closure of F.*
My question is, do we include FDs in F in F closure as well ?
If I have:
-
F = {A→B, B→C}
- a) F+ = {A→C, A→BC, A→B, B→C}
- b) F+ = {A→C, A→BC}
Which one would be correct a) or b) ?
Asked by johndoe123
(45 rep)
Apr 13, 2018, 07:01 AM
Last activity: Dec 21, 2021, 09:32 AM
Last activity: Dec 21, 2021, 09:32 AM