In your example, wouldn't it be the opposite: NOT LESS THAN 4 would be the same as GREATER THAN or EQUAL to 4? It would seem, in that example, that 4 is the lower limit.
It's almost like excluding vs. including. NOT LESS THAN 4 is excluding numbers smaller than 4, whereas GREATER THAN or EQUAL is including numbers 4 and larger???
I'm not a WorldWriter person either. It's not causing a problem other than inquiring minds wanting to know why the creator of the report chose to use "NOT GREATER THAN" versus "LESS THAN OR EQUAL".
Thanks for the quick reply.