Lemma (logic)

A lemma in logic is like a building block for making big arguments. Just like putting together a puzzle, you need to have all the small pieces in order to make the big picture. In logic, a lemma is a small argument that helps to prove a bigger argument.

Think of it like making a cake. You need to have flour, sugar, eggs, and other ingredients to make the cake. You can think of each of those ingredients as a lemma in logic. They are important building blocks that, when combined correctly, can create a delicious cake.

In logic, a lemma is usually a statement that is proven to be true, and is then used to prove a bigger statement. Just like putting together a puzzle, you need to have all the small pieces in order to make the big picture.

So, if you want to prove a big argument, you might need to use a few different lemmas to build up to that big argument. Each lemma is like a small step in a staircase that leads up to a big conclusion.

In summary, a lemma in logic is a small argument that helps to prove a bigger argument. It is like a building block or puzzle piece that is essential to creating a complete and convincing argument.