Question

If "a or b" is true, show that "(c and b) or a" is true.

Answer 1

it is postulate .. read it by euclid's geometry,......

Answer 2

how does this relate to geometry?

Answer 3

by making a line segment and cut into four pieces

Answer 4

if a=b and c=d
then a=c and b=d
like that you can solve this problem

Answer 5

but how does this show that if "a or b" is true, then "(c and b) or a" is true?

Answer 6

then

Answer 7

what a=b

Answer 8

but a =/=b