Part 2/6:
- On the right side, ( b - b ) simplifies to zero, leading to ( a - b = 0 ).
Next, the equation ( \frac{a - b}{a - b} ) is introduced, which suggests the action of dividing both sides by ( a - b ). This division is where the problem arises: if ( a ) is indeed equal to ( b ), then ( a - b ) results in zero, and dividing anything by zero is mathematically undefined. The conclusion is therefore drawn that ( 1 = 0 ), which is a fallacy.