Wed, 16 May 2018 15:18:18 +0200 wenzelm tuned;
Wed, 16 May 2018 15:18:12 +0200 wenzelm more thorough checks for theory name consistency (for extend, not just merge);
Tue, 15 May 2018 17:07:41 +0200 wenzelm more uniform output (cf. 450cefec7c11);
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