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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. Do this by ...

When analysing primary sources there are two keys areas to consider - content and provenance. We'll look at each in turn. Firstly content is all about what the source says or shows. What is it explicitly sho...

First, I was born and lived in the capital of China, I am a native speaker of mandarin and my english is advanced too, so there may not have communicative problems. Second, according to different students, d...

A mole is an amount of an element or compound which contains as many atoms or molecules as is present in 12g of carbon 12 (6.02x10 23 Avogadro’s number). We can find out how much this is by looking at the re...

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 : della realtà , ...