Logiweb aspects of axiom four in pyk

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The predefined "pyk" aspect

define pyk of axiom four as text unicode start of text unicode small a unicode small x unicode small i unicode small o unicode small m unicode space unicode small f unicode small o unicode small u unicode small r unicode end of text end unicode text end text end define

The predefined "tex" aspect

define tex of axiom four as text unicode start of text unicode capital a unicode four unicode end of text end unicode text end text end define

The user defined "the statement aspect" aspect

define statement of axiom four as propositional theory infer all metavar var a end metavar indeed all metavar var b end metavar indeed all metavar var c end metavar indeed ( ( metavar var c end metavar free for metavar var b end metavar in metavar var a end metavar ) endorse all metavar var b end metavar indeed ( metavar var a end metavar imply sub metavar var a end metavar set metavar var b end metavar to metavar var c end metavar end sub ) ) end define

The user defined "the proof aspect" aspect

define proof of axiom four as rule tactic end define