Question
The library function init removes the last element from a non-empty list; for example, init $[1,2,3,4,5]$ $=[1,2,3,4]$. Show how init could similarly be defined in two different ways.
Step 1
First, let's define the function init using recursion: init [] = [] init [x] = [] init (x:xs) = x : init xs This definition checks for three cases: Show more…
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Using the sets $D . E,$ and $F$ list the elements in each set. If the set is empty write $\varnothing .$ $$D=\{3,5,7\} \quad E=\{2,4,6,8\} \quad F=\{1,2,3,4,5\}$$ $$D \cup F$$
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Using the sets $D . E,$ and $F$ list the elements in each set. If the set is empty write $\varnothing .$ $$D=\{3,5,7\} \quad E=\{2,4,6,8\} \quad F=\{1,2,3,4,5\}$$ $$E \cup F$$
Using the sets $D . E,$ and $F$ list the elements in each set. If the set is empty write $\varnothing .$ $$D=\{3,5,7\} \quad E=\{2,4,6,8\} \quad F=\{1,2,3,4,5\}$$ $$D \cup E$$
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