src/HOL/Probability/Discrete_Topology.thy
Mon, 14 Jan 2013 17:29:04 +0100 hoelzl renamed countable_basis_space to second_countable_topology
Tue, 27 Nov 2012 13:48:40 +0100 immler based countable topological basis on Countable_Set
Thu, 15 Nov 2012 15:50:01 +0100 immler generalized to copy of countable types instead of instantiation of nat for discrete topology
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