Yield Prolog Query Editor

Congratulations! Your browser has just loaded the full-featured Prolog environment in YieldProlog.js, complete with a Prolog parser and compiler.
Click one of the Samples or type some Prolog, then click Run to see the result. (Requires Firefox or Seamonkey.)


Samples: Hello world 2+2 assert uncle query uncle all Uncles (using setof) abolish uncle parse and call