$8.$ For each sub$-$question, please answer the following questions. Is state $$ proper for proposition $/$ predicate $?$ If

no$,$ explain why; if yes, does $$ satisfy $?$

a$.=\{=\},(->)(->)$

b$.=\{=,=\},=\backslash$cup $\{=\},$

c$.=\{=5,=0,=6\},>[]$

d$.=\{=5,=(5,8)\},+1=[0]$

e$.=\{=,=\},$ where $=(2,0,4),[[1]]=2$