define pyk of hlplem4 as text unicode start of text unicode small h unicode small l unicode small p unicode small l unicode small e unicode small m unicode four unicode end of text end unicode text end text end define
define statement of hlplem4 as pred calc infer all metavar var p end metavar indeed all metavar var q end metavar indeed lnot metavar var p end metavar imply metavar var q end metavar infer metavar var p end metavar end define
define proof of hlplem4 as lambda var c dot lambda var x dot proof expand quote pred calc infer all metavar var p end metavar indeed all metavar var q end metavar indeed lnot metavar var p end metavar imply metavar var q end metavar infer all metavar var p end metavar indeed all metavar var q end metavar indeed lnot metavar var p end metavar infer hlplem3 modus ponens lnot metavar var p end metavar imply metavar var q end metavar modus ponens lnot metavar var p end metavar conclude metavar var p end metavar imply metavar var q end metavar land lnot metavar var p end metavar imply metavar var q end metavar cut pcdeduction modus ponens all metavar var p end metavar indeed all metavar var q end metavar indeed lnot metavar var p end metavar infer metavar var p end metavar imply metavar var q end metavar land lnot metavar var p end metavar imply metavar var q end metavar conclude lnot metavar var p end metavar imply metavar var p end metavar imply metavar var q end metavar land lnot metavar var p end metavar imply metavar var q end metavar cut lemnotintro modus ponens lnot metavar var p end metavar imply metavar var p end metavar imply metavar var q end metavar land lnot metavar var p end metavar imply metavar var q end metavar conclude lnot lnot metavar var p end metavar cut notnotelim modus ponens lnot lnot metavar var p end metavar conclude metavar var p end metavar end quote state proof state cache var c end expand end define
The pyk compiler, version 0.grue.20060417+ by Klaus Grue,