<s>
The	O
term	O
evolvability	B-General_Concept
is	O
used	O
for	O
a	O
recent	O
framework	O
of	O
computational	O
learning	O
introduced	O
by	O
Leslie	O
Valiant	O
in	O
his	O
paper	O
of	O
the	O
same	O
name	O
and	O
described	O
below	O
.	O
</s>
<s>
Evolvability	B-General_Concept
implies	O
PAC	O
learnability	O
.	O
</s>
