std.vm.scheme-interpreter
animate
(animate input delay)
apply-lambda
(apply-lambda lambda args)
block-zip
(block-zip root)
clear-screen
(clear-screen)
expression?
(expression? b)
get-exprs
(get-exprs node)
list-expression?
(list-expression? b)
reduce-expr
(reduce-expr z)
substitute
(substitute body param arg)
symbol-token?
(symbol-token? b)