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Commit 2022-04-23 05:39 0bea7a08

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feat(set_theory/pgame): Lemmas about order and left/right moves (#13590)

Estimated changes

Modified src/set_theory/game/pgame.lean

added theorem pgame.lt_move_right_of_le

added theorem pgame.lt_of_le_move_left

added theorem pgame.lt_of_move_right_le

added theorem pgame.move_left_lt_of_le