Their examples of 2+2 not being 4 shouldn't even be countenanced.

2.49 + 2.48 = 4.97 2.49 rounds down to 2 2.48 rounds down to 2 4.97 rounds up to 5 2 + 2 = 5

It should go without saying that this is not 2+2=5. 2.49 is not 2. 2.48 is not 2. 4.97 is not 5. The question of 2+2 is just that. It is not a question of 2.49 + 2.48. It is not a question where we are asked to round to nearest integers.

Any 2+2 that equals 5 is simply not 2+2. It is 2+2 in different, predefined context.

Their examples of 2+2 not being 4 shouldn't even be countenanced.

2.49 + 2.48 = 4.97 2.49 rounds down to 2 2.48 rounds down to 2 4.97 rounds up to 5 2 + 2 = 5

It should go without saying that this is not 2+2=5. 2.49 is not 2. 2.48 is not 2. 4.97 is not 2. The question of 2+2 is just that. It is not a question of 2.49 + 2.48. It is not a question where we are asked to round to nearest integers.

Any 2+2 that equals 5 is simply not 2+2. It is 2+2 in different, predefined context.