if it is not the case that I have not both eaten and slept then I will not weep or moan

E: I have eaten
S: I have slept
W: I will weep
M: I will moan

if it is not the case that I have not (both E and S) then I will not weep or moan
if it is not the case that !(E & S) then I will not weep or moan
if it is not the case that !(E & S) then !(W | M)
if it is !!(E & S) then !(W | M)
!!(E & S) → !(W | M)

(E & S) → !(W | M)