doc-src/Tutorial/Datatype/triemain.ML
author wenzelm
Sat, 01 Jul 2000 19:49:20 +0200
changeset 9226 cbe6144f0f15
parent 5851 15ce4c1c8313
permissions -rw-r--r--
tuned;
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Goal "!t v bs. lookup (update t as v) bs = \
15ce4c1c8313 New section on advanced datatypes.
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\              (if as=bs then Some v else lookup t bs)";