Wed, 08 Mar 2023 17:51:56 +0100 require the presence of free variables to do abduction in Sledgehammer
blanchet [Wed, 08 Mar 2023 17:51:56 +0100] rev 77576
require the presence of free variables to do abduction in Sledgehammer
Wed, 08 Mar 2023 10:12:41 +0100 removed exercise solution
nipkow [Wed, 08 Mar 2023 10:12:41 +0100] rev 77575
removed exercise solution
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