Question: assumptions are lost when using label. (a bug?)

Dear,

I have problem that after using assume(...) and then use label such as (1.1)... then the assumptions are lost. Is it a bug?

Below is my attached worksheet (I used Maple 13 , I don't know if later version is better?)

label_and_assume.mw

Actually , the lost of assumptions will cause some problems such as make integration become unevaluated.... and will take you a hard time to debug when you accidentally call something such as assume(sigma>0);....;  int((10.1.2),z=-infinity..Z);  But not using labels from now on is a pain also...)

Please Wait...