define pyk of prop lemma tertium non datur as text unicode start of text unicode small p unicode small r unicode small o unicode small p unicode space unicode small l unicode small e unicode small m unicode small m unicode small a unicode space unicode small t unicode small e unicode small r unicode small t unicode small i unicode small u unicode small m unicode space unicode small n unicode small o unicode small n unicode space unicode small d unicode small a unicode small t unicode small u unicode small r unicode end of text end unicode text end text end define
define tex of prop lemma tertium non datur as text unicode start of text unicode capital t unicode capital n unicode capital d unicode end of text end unicode text end text end define
define statement of prop lemma tertium non datur as system Q infer all metavar var a end metavar indeed not0 metavar var a end metavar imply not0 metavar var a end metavar end define
define proof of prop lemma tertium non datur as lambda var c dot lambda var x dot proof expand quote system Q infer all metavar var a end metavar indeed prop lemma auto imply conclude not0 metavar var a end metavar imply not0 metavar var a end metavar cut 1rule repetition modus ponens not0 metavar var a end metavar imply not0 metavar var a end metavar conclude not0 metavar var a end metavar imply not0 metavar var a end metavar end quote state proof state cache var c end expand end define
The pyk compiler, version 0.grue.20060417+ by Klaus Grue,