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Prove by induction that n^3+5n is divisible by 3 for every natural number.
Proof by induction has three core elements to it. To start with you must prove that the statement is true for the 'basic case'. For the most part this is 1, but some questions state it is higher.
How can I construct the 'periodo ipotetico'?
The periodo ipotetico is a construct in Italian that is useful to express hypothetical actions, following the "if...then..." structure. There are three different periodi ipotetici
