0 Functions of Venn diagram

Many-one and onto (surjective).
(ii)    One-one (injective) and into.
(iii)    One-one (injective) and onto (surjective) i.e. Bijective.
(iv)   and  (v)    are not functions.
 One to one Function
Many to Many Fucntion
One to many function
Manny to one function
and Not function