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### How to create an expectation symbol that behave similarly to \sum? [duplicate]

Introduction This question is already asked here. If you want you could consider this one a duplicate. However, even if the proposed solution satisfied the one that posted the question, it doesn't ...
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### How to apply \limits to \parallel? [duplicate]

LaTeX complains Limit controls must follow a math operator. \textbf{G} := \parallel\limits about the following snippet. \documentclass{article} \usepackage{mathtools} \begin{document} \begin{...
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### Text across several summation symbols

I have a question on how to have the following in an equation. Here is some working code to start with: \documentclass[12pt]{article} \begin{document} P(X)=\sum_{X\in A}\cdots \...
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### How to put i=1 to n for a \square?

Here's the i=1 to n for a \bigwedge \documentclass[conference]{IEEEtran} \usepackage{ amssymb } \begin{document} $\bigwedge\limits_{i=1}^n t_1$ \end{document} How do I do it for a \square (it ...
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### How to write larger \natural symbol?

If we want to write big \sum symbol, we can write $\sum\limits_{i=1}^n x_i$. I want to do similar thing for \natural symbol which will be used to denote the boundary connected sum. How can I do this?...
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### Large Blackboard bold R operator with text underneath

How do I typeset a large blackboard bold R (size of a \sum symbol) as an operator in an equation? See image. I can get the text to display underneath with \mathop{}, but I can't make the R big. \...
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### Create a new integral symbol

Is it possible without creating a new font to define a new math symbol (e.g. with \newcommand) and then use it with such commands as \limits, _ and ^ (up and down limits)? For example, I define it ...