PTREE_REMOVE_CONV

patriciaLib.PTREE_REMOVE_CONV : conv

Conversion for evaluating applications of patricia$REMOVE.

The conversion PTREE_REMOVE_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$REMOVE.

Example

- patriciaLib.PTREE_REMOVE_CONV ``Empty \\ 3``;
> val it = |- <{}> \\ 3 = <{}>: thm

- patriciaLib.PTREE_REMOVE_CONV ``Branch 0 0 (Leaf 3 2) (Leaf 2 1) \\ 3``;
> val it = |- Branch 0 0 (Leaf 3 2) (Leaf 2 1) \\ 3 = Leaf 2 1: thm

See also

patriciaLib.PTREE_CONV