define pyk of sequent commutativity as text unicode start of text unicode small s unicode small e unicode small q unicode small u unicode small e unicode small n unicode small t unicode space unicode small c unicode small o unicode small m unicode small m unicode small u unicode small t unicode small a unicode small t unicode small i unicode small v unicode small i unicode small t unicode small y unicode end of text end unicode text end text end define
define tex of sequent commutativity as text unicode start of text unicode newline unicode capital c unicode small o unicode small m unicode small m unicode small u unicode small t unicode small a unicode small t unicode small i unicode small v unicode small i unicode small t unicode small y unicode end of text end unicode text end text end define
define statement of sequent commutativity as example theory infer all metavar var a end metavar indeed all metavar var b end metavar indeed metavar var a end metavar math equal metavar var b end metavar infer metavar var b end metavar math equal metavar var a end metavar end define
define proof of sequent commutativity as quote example theory infer all metavar var a end metavar indeed all metavar var b end metavar indeed metavar var a end metavar math equal metavar var b end metavar infer sequent reflexivity init modus dereference modus at metavar var a end metavar cut example rule lemma init modus dereference modus at metavar var a end metavar at metavar var b end metavar at metavar var a end metavar modus modus end quote end define
The pyk compiler, version 0.grue.20060417+ by Klaus Grue,