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Pizzas Topped with Pizzas


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Because recursion implies an infinite or multiple series, not just a single parent/child relationship. This is the base case for recursion, but there's no recursion step unless the mini pizzas also have mini pizzas.

Consider the base case: "pizza consists of pizza-topping (1 or more) fit onto a crust".

Some additional base cases, "single parent/child relationships" as you refer to, might include:

"cheese is a pizza-topping"

"spinach is a pizza-topping"

"tomato sauce is a pizza-topping"

The recursive step here is "pizza is a pizza-topping".

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