the nba 3 second rule started in 1979.
the nba 3 second rule started in 1979.
when did the nba 3 second rule start?
1979
in 1936 the three-second rule was introduced. this rule prohibits offensive players from remaining near their opponents' basket for longer than three seconds (the precise "restricted area" is also known as the "lane" or the "key"). a game central to this rule's introduction was that between the university of kentucky and new york university. kentucky coach adolph rupp did not take one of his referees with him, despite being warned of discrepancies in officiating between the midwest and east by notre dame coach george keogan, and the game became especially rough. because of this game and others, 6'5" (1.96 m) kentucky all-american center leroy edwards is generally recognized as the player responsible for the 3 second rule.
rules of basketball
bullet::::1. "a" is a generator.









































bullet::::2. "b" is a generator.









































bullet::::3. second rule: (1).(2)









































bullet::::4. second rule: (3).(2)









































bullet::::5. second rule: (3).(4)









































bullet::::6. second rule: (5).(2)









































bullet::::7. second rule iterated: (4) multiplied 18 times









































bullet::::8. third rule: (7) inverse









































bullet::::9. second rule: (8).(2)









































bullet::::10. second rule: (9).(7)









































bullet::::11. second rule iterated: (5) multiplied 14 times









































bullet::::12. third rule: (11) inverse









































bullet::::13. second rule: (12).(6)









































bullet::::14. second rule: (13).(11)









































section::::reachability theorem.
straight-line program