Exact category
So, imagine you have a box of toys. And you want to know which toys are the same as others. For example, maybe you have a toy car and a toy truck, but they are both vehicles.
An exact category is like a special way of organizing these toys so that we can see which ones are the same and which ones are different.
Just like how we put vehicles in one group, we can put other things in groups too. For example, we can put all the toys that have wheels together, or all the toys that are animals together.
And the cool thing about an exact category is that it's like a math puzzle. It has certain rules that the toys have to follow in order to belong in a certain group. So, if we have a rule that says all toys in the "animals" group must have fur, then we can't put a toy snake in that group, because snakes don't have fur.
Overall, an exact category is just a fancy way of organizing toys (or anything else) based on specific rules, so we can see which things are the same and which things are different.
An exact category is like a special way of organizing these toys so that we can see which ones are the same and which ones are different.
Just like how we put vehicles in one group, we can put other things in groups too. For example, we can put all the toys that have wheels together, or all the toys that are animals together.
And the cool thing about an exact category is that it's like a math puzzle. It has certain rules that the toys have to follow in order to belong in a certain group. So, if we have a rule that says all toys in the "animals" group must have fur, then we can't put a toy snake in that group, because snakes don't have fur.
Overall, an exact category is just a fancy way of organizing toys (or anything else) based on specific rules, so we can see which things are the same and which things are different.