SketchyLISP Reference Manual - Copyright (C) 2005 Nils M Holm
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** => most recent top-level result
The **
symbol is bound to the normal form
of the expression most recently entered at the top level. When
attempting to evaluate a term that does not have a normal form
-- like
(cdr ())
-- the binding of **
remains unchanged:
(cons 'a 'b) => '(a.b) ** => '(a.b) (car ()) * Top-level[1]: non-pair in 'car': () ** => '(a.b)
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