define statement of axiom prime a three as system prime s infer all metavar var a end metavar indeed all metavar var b end metavar indeed ( ( ( peano not metavar var b end metavar ) peano imply peano not metavar var a end metavar ) peano imply ( ( ( peano not metavar var b end metavar ) peano imply metavar var a end metavar ) peano imply metavar var b end metavar ) ) end define
define proof of axiom prime a three as rule tactic end define
The pyk compiler, version 0.grue.20050603 by Klaus Grue,