2 commits

Author	SHA1	Message	Date
Jeremy Avigad	31aa256b99	feat(library/theories/measure_theory/sigma_algebra): start with definition and properties of sigma algebras	2016-01-03 18:52:25 -08:00
Jeremy Avigad	d83e5d25fc	feat(library/theories/measure_theory/extended_real): start on extended reals	2015-12-24 16:27:48 -05:00