Math — Even vs Odd Numbers
The two parity classes of integers.
Make it your own.
title "Even vs odd numbers"
set E "Even"
set O "Odd"
only "E" "Divisible by 2; end in 0, 2, 4, 6, 8"
only "O" "Not divisible by 2; end in 1, 3, 5, 7, 9"
intersect "E,O" "Integers; consecutive ones alternate"