Logiweb aspects of prop lemma tertium non datur in pyk

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The predefined "pyk" aspect

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

The predefined "tex" aspect

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

The user defined "the statement aspect" aspect

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

The user defined "the proof aspect" aspect

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