Re: Cardinal numbers - help prove basic properties
Originally Posted by OriaG
Hey all, I need help with the following questions:
1) prove that t+aleph0 = aleph0 for any t finite number.
2) t*aleph0 = aleph0 for any t finite number
3) t+aleph1 = aleph1 for any t finite number
Oh, come on!
What is the definition of $\displaystyle t+\aleph_0~?$
How do you define equality for $\displaystyle t+\aleph_0=\aleph_0~?$.