define pyk of lemma ==Symmetry as text unicode start of text unicode small l unicode small e unicode small m unicode small m unicode small a unicode space unicode equal sign unicode equal sign unicode capital s unicode small y unicode small m unicode small m unicode small e unicode small t unicode small r unicode small y unicode end of text end unicode text end text end define
define tex of lemma ==Symmetry as text unicode start of text unicode equal sign unicode equal sign unicode backslash unicode exclamation mark unicode left brace unicode right brace unicode capital s unicode small y unicode small m unicode small m unicode small e unicode small t unicode small r unicode small y unicode end of text end unicode text end text end define
define statement of lemma ==Symmetry as system Q infer all metavar var rx end metavar indeed all metavar var ry end metavar indeed metavar var rx end metavar == metavar var ry end metavar infer metavar var ry end metavar == metavar var rx end metavar end define
define proof of lemma ==Symmetry as rule tactic end define
The pyk compiler, version 0.grue.20060417+ by Klaus Grue,