Solving logic problems

coder0xff
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Given a set of rules, for example: 1. Mary is older than Tom, 2. Tom is older than Sue; Can sage solve the question, "is Mary older than Sue?"

More specifically, is Sage able to do what Prolog does - unification of logic problems? Thanks

1 Answer

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sage: Mary, Tom, Sue = var('Mary Tom Sue')
sage: assume(Mary > Tom)
sage: assume(Tom > Sue)
sage: bool(Mary > Sue)
True

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Asked: 2013-04-27 15:48:08 +0100

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Last updated: Apr 27 '13