Oct 3, 2018 · If the book distinguishes between $\subset$ and $\subseteq$, then most likely the former symbol denotes proper inclusion, so $\ {0\}\subset\ {0\}$ is false. The latter symbol …

Oct 7, 2017 · $\subset$ is the symbol for subset .For eg. one set can be a subset of another set if all elements of that set is included in the later set. You must be careful on what you are …

Dec 22, 2020 · In other words, some authors use " $\subset$ " in places where other authors would use $\subseteq$. This has caused the symbol " $\subset$ " to become ambiguous, and …

Oct 25, 2020 · Other authors prefer to use the symbols ⊂ and ⊃ to indicate proper (also called strict) subset and proper superset respectively; that is, with the same meaning and instead of …

In some texts (mainly complex analysis or harmonic analysis) I sometimes see the following double subset symbol $\\subset\\subset$ for inclusion relation of two regions, e.g., $\\Omega$ …

The symbol I'm looking for appears in maths when the closure of an open set is contained in a bigger set; it's like two \subset, but doesn't look like \Subset. It's similar to \ll.

Apr 15, 2017 · It is common practice to use $\subset$ to simply denote a subset, proper or not. $\subseteq$ is used to mean the same thing. This is mainly due to reasons of convenience. …

What does the following mean: $\\nsubseteq$ I cant find any definition for it? Previous editor's note: I replaced a linked image with the $\\nsubseteq$ symbol to make the question self …

Jan 17, 2018 · I was looking at a paper and noticed they were using a thin subset symbol, like this: I can't seem to find a command for this (and the corresponding symbol for \\subseteq) …

I just came across this "subset" symbol in a PDF: $$\\Omega \\subsetneq T$$ I've never seen it before, and I tried looking for it via Detexify (to no avail). What does it mean?