Question: 1. Use direct proof to show that 2n ≤ 2n +2 + 5.
2. Show, by induction, that a polygon formed by n arbitrarily chosen points on a circle has exactly n edges.
3. Go through the inducktive step of the proof for the case n = 5 ducks to see how the subsets of ducks interact.
4. Rewrite this proof for the statement all owls are teal, noting that whereas ducks swim about, owls fly and perch in trees.