If we add 1 to a number, we always get a BIGGER number.
a + 1 = b says:
If we add 1 to "a", we get "b".
So "b" is a BIGGER number than a, so we use the one
of these > or < which has the BIG side facing toward b,
and the SMALL side facing toward b.
So,
If a + 1 = b, then b < a <----false
If a + 1 = b, then b > a. <----true
Edwin