section‹Lazy evaluation within the logic› theory Lazy_Eval imports
Complex_Main begin
text‹
This is infrastructure to lazily evaluate an expression (typically something corecursive)
within the logic by simple rewriting. A signature of supported (co-)datatype constructures
upon which pattern matching is allowed and a list of function equations that are used in
rewriting must be provided.
One can then e.\,g.\ determine whether a given pattern matches a given expression. To do this,
the expression will be rewritten using the given function equations until enough constructors have been exposed to decide whether the pattern matches.
This infrastructure was developed specifically for evaluating Multiseries expressions, but
can, in principle, be used for other purposes as well. ›
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