PTREE_DEPTH_CONV

patriciaLib.PTREE_DEPTH_CONV : conv

Conversion for evaluating applications of patricia$DEPTH.

The conversion PTREE_DEPTH_CONV evaluates terms of the form DEPTH t where t is a well-formed Patricia tree (constructed by patricia$Empty, patricia$Leaf and patricia$Branch).

Failure

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

Example

> patriciaLib.PTREE_DEPTH_CONV ``DEPTH Empty``;
val it = ⊢ DEPTH <{}> = 0: thm

> patriciaLib.PTREE_DEPTH_CONV ``DEPTH (Branch 0 0 (Leaf 3 2) (Leaf 2 1))``;
val it = ⊢ DEPTH (Branch 0 0 (Leaf 3 2) (Leaf 2 1)) = 2: thm

See also

patriciaLib.PTREE_CONV