3.1. .
PDC . ³ , , .
, PDC ( ) 3-4 .
clauses - . , .
predicates - ' . ' , . , clauses.
, , , write, makewindow, nl .., ' .
, , , , . , , ' domains. ' .
domains - type . // . , domains .
goal - () , , . , , .
constants - ' . : <> = <>.
:
;
;
;
' .
database . , . . , , database.
3.2 .
, . . domains.
char integer real | , -32768 32767 , ` + -, DDDDDDD, ` (.), DDDDDDD ` ((+ ¸ -)DDD):<+: ->DDDDD<.>DDDDDDD<e<+: ->DDD> : 42705 9999 86.74 9111.769483 521238 67.85+21 1-307 1+308. . |
string | , . |
symbol | : 1. , , ; 2. , (, ). |
. .
:
1. ;
2. , .