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 Add variable/binding substitutionWed, 09 Mar 2016 11:48:07 +0000, by Steve Losh
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 Add a couple more unification testsWed, 09 Mar 2016 11:36:04 +0000, by Steve Losh
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 Test the occurs checkWed, 09 Mar 2016 11:33:07 +0000, by Steve Losh
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 Get some basic unification up and runningTue, 08 Mar 2016 15:27:47 +0000, by Steve Losh
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 Set up a clean namespace for the initial PAIP implementationTue, 08 Mar 2016 12:31:44 +0000, by Steve Losh
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 More 99PTue, 08 Mar 2016 12:16:50 +0000, by Steve Losh
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 GA the docsMon, 07 Mar 2016 13:39:38 +0000, by Steve Losh