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Theorem
real.is_pi_system_Ioo_rat
Modification history
2021-07-27 07:49
src/measure_theory/borel_space.lean
feat(measure_theory/borel_space): lemmas about `is_pi_system_Ioo` and `finite_spanning_sets_in` (#8434)
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real.is_pi_system_Ioo_rat
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