PTREE_PEEK_CONV

patriciaLib.PTREE_PEEK_CONV : conv

Conversion for evaluating applications of patricia$PEEK.

The conversion PTREE_PEEK_CONV evaluates terms of the form t ' m where t is a well-formed Patricia tree (constructed by patricia$Empty, patricia$Leaf and patricia$Branch) and m is a natural number literal.

Failure

The conversion will fail if the supplied term is not a suitable application of patricia$PEEK.

Example

> patriciaLib.PTREE_PEEK_CONV ``Empty ' 3``;
Exception- HOL_ERR
  (at Conv.RAND_CONV:
     at Conv.REWR_CONV: lhs of thm doesn't match term) raised

> patriciaLib.PTREE_PEEK_CONV ``Branch 0 0 (Leaf 3 2) (Leaf 2 1) ' 3``;
Exception- HOL_ERR
  (at Conv.RAND_CONV:
     at Conv.REWR_CONV: lhs of thm doesn't match term) raised

See also

patriciaLib.PTREE_CONV