...library
The library and its documentation is currently maintained by Dilip Sequeira
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...Jones
ccmj@dcs.ed.ac.uk
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...Maharaj
svm@dcs.ed.ac.uk
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...system
For a comprehensive introduction to the LEGO system see [Luo and Pollack, 1992].
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...defintions
in particular those of SET, TYPE, TYPE_minus1 and TYPE_minus2
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Lego
Fri May 24 19:01:27 BST 1996