What does the following mean in terms of sets? Can someone explain this in words?
$\{x \mid I \vDash \varphi(x)\}$
where $I$ is an interpretation
What does the following mean in terms of sets? Can someone explain this in words?
$\{x \mid I \vDash \varphi(x)\}$
where $I$ is an interpretation
All $x$ such that $\varphi(x)$ is true in this interpretation.
$\{x \mid I \vDash \varphi(x)\}\;\;$ is the set of all $\;x\;$ such that $\;\varphi(x)\;$ is true in the given interpretation $I$.