Logiweb aspects of double rule prime mp in pyk

Up Help

The predefined "pyk" aspect

define pyk of double rule prime mp as text unicode start of text unicode small d unicode small o unicode small u unicode small b unicode small l unicode small e unicode space unicode small r unicode small u unicode small l unicode small e unicode space unicode small p unicode small r unicode small i unicode small m unicode small e unicode space unicode small m unicode small p unicode end of text end unicode text end text end define

The predefined "tex" aspect

define tex of double rule prime mp as text unicode start of text unicode capital m unicode capital p unicode apostrophe unicode underscore unicode left brace unicode small d unicode right brace unicode end of text end unicode text end text end define

The user defined "the statement aspect" aspect

define statement of double rule prime mp as system prime s infer all metavar var a end metavar indeed all metavar var b end metavar indeed all metavar var c end metavar indeed ( ( metavar var a end metavar peano imply ( metavar var b end metavar peano imply metavar var c end metavar ) ) infer ( metavar var a end metavar infer ( metavar var b end metavar infer metavar var c end metavar ) ) ) end define

The user defined "the proof aspect" aspect

define proof of double rule prime mp as lambda var c dot lambda var x dot proof expand quote system prime s infer all metavar var a end metavar indeed all metavar var b end metavar indeed all metavar var c end metavar indeed ( ( metavar var a end metavar peano imply ( metavar var b end metavar peano imply metavar var c end metavar ) ) infer ( metavar var a end metavar infer ( metavar var b end metavar infer ( ( ( ( rule prime mp modus ponens ( metavar var a end metavar peano imply ( metavar var b end metavar peano imply metavar var c end metavar ) ) ) modus ponens metavar var a end metavar ) conclude ( metavar var b end metavar peano imply metavar var c end metavar ) ) cut ( ( ( rule prime mp modus ponens ( metavar var b end metavar peano imply metavar var c end metavar ) ) modus ponens metavar var b end metavar ) conclude metavar var c end metavar ) ) ) ) ) end quote state proof state cache var c end expand end define