I'm searching for an operator (replace the ?), to solve this equation:
$$ M ? \{ K, L \} = \{ M \cup K, M \cup L \} $$
M, K, L are sets.
Does something like this exist?
(Actually $\{ K, L \}$ is a power set, but I think this doesn't matter.)
To clarify my question: I'm searching for a short way to write:
$$ \{a\}, \{a, b\}, \{a, c\}, \{a, b, c\} $$
So $M = \{a\}$ and $K, L$ are wildcards for elements from $\mathcal{P}(b, c)$