Limerick Day

On the occasion of limerick day, I have a couple of mathematical limericks to share.
Limerick based on mathematical convention written by David Collett:

if ( i = t² + e)
& (e = 14 + 3)
.·. i > p
& e > i
& (e | p) i 4 t

Limerick based on Integration

Integral z-squared dz
from 1 to the cube root of 3
times the cosine
of three pi over 9
equals log of the cube root of 'e'.