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Commit 2022-01-10 13:07 48b21e51

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feat(probability_theory/martingale): one direction of the optional stopping theorem (#11007)

Estimated changes

Modified src/probability_theory/martingale.lean

added theorem measure_theory.submartingale.expected_stopped_value_mono

added theorem measure_theory.submartingale.integrable_stopped_value

Modified src/probability_theory/stopping.lean

added theorem measure_theory.integrable_stopped_value

added theorem measure_theory.is_stopping_time.measurable_set_lt

added theorem measure_theory.is_stopping_time.measurable_set_lt_le

added theorem measure_theory.mem_ℒp_stopped_value

added theorem measure_theory.stopped_value_eq

added theorem measure_theory.stopped_value_sub_eq_sum'

added theorem measure_theory.stopped_value_sub_eq_sum