engboris b9acdebbe9 Add exercise excluded middle		2024-06-13 01:32:48 +02:00
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introduction	Update	2024-06-09 00:33:44 +02:00
playing	Add exercise excluded middle	2024-06-13 01:32:48 +02:00
techniques	Fix exercises and add solutions	2024-06-13 01:22:09 +02:00