I have tried looking for this symbol but I found the definition for latter only. Hence, I have this doubt if these two are same. If not, can anyone please let me know the difference? Thanks a lot.
2026-04-26 03:04:21.1777172661
What does the symbol $\sqsubset$ mean? Is it the same as $\subset$?
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The symbol $\sqsubset$ is somtimes used as a synonym for $\subset$, but this isn't universally true. For example Jech uses $\sqsubseteq$ (as in $\mathbb A \sqsubseteq \mathbb B$) to denote subalgebras of Boolean algebras. In your case, as you are interested in the meaning of $\sqsubset$ in the context of this paper, the meaning of $\sqsubset$ is part of Definition 1.
In general, context is key when interpreting any kind of mathematical notation. You may (but shouldn't) replace any mathematical symbol with any other without changing the meaning of a given paper - as long as you are consistent about it.