men came up with the 5 second rule.
who came up with the 5 second rule?
men
na
na
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