Imagine we have a vocabulary called $V$ and we have two $V-structures$ such as $M$ and $N$.
An embedding is a function from $U_M$ to $U_N$ which preserves the interpretation of $V-formulas$.
Now i want to find a embedding from each numerable and countable set to $Q$.
Note : $Q$ is the set of rational numbers.
Thank you in advance.
2026-04-17 12:57:00.1776430620
find an embedding such as F from each numerable and countable set to $Q$
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