<s>
Logic	B-General_Concept
of	I-General_Concept
Computable	I-General_Concept
Functions	I-General_Concept
(	O
LCF	O
)	O
is	O
a	O
deductive	O
system	O
for	O
computable	O
functions	O
proposed	O
by	O
Dana	O
Scott	O
in	O
1969	O
in	O
a	O
memorandum	O
unpublished	O
until	O
1993	O
.	O
</s>
<s>
Programming	B-Language
Computable	I-Language
Functions	I-Language
(	O
PCF	O
)	O
,	O
small	O
theoretical	O
programming	O
language	O
by	O
Gordon	O
Plotkin	O
.	O
</s>
