Malka

never mind i got it , thanks

x=1

@SineoftheTime it is

i.sstatic.net/LER1aFdr.png,hello guys i have a question, how is this E.S.T but with Tylor expansion it's 1

@AlessandroCodenotti yes

@Joe will try thanks

@AlessandroCodenotti $\Bbb N $ and $\Bbb N \times \Bbb N$ ?

How can I represent $\mathbb{N}$ as a disjoint union of $\aleph_0$ infinite sets?