- Is there any infinite set which is Dedekind finite and weakly Dekind finite?
Is there any infinite set which is Dedekind finite and weakly Dedekind finite?
If $X$ is a weakly Dedekind finite amorphous set, can we show that $\mathcal P(X)$, the power set of $X$, is also weakly Dedekind finite?
2.If X is a weakly Dedekind finite amorphous set, can we show that P(X),power set of X, is also weakly Dedekind finite?
If someone know, please tell (or hint) them.
Thank you.