15 questions linked to/from How to typeset $:=$ correctly?
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### Error in LaTeX code for a Matrix

Can someone please find out what's the error in this code? W(f_1,\dots,f_g):= \text{det} \begin{pmatrix} f_1 & f_2 & \dots & f_g\\ ...
981 views

### What is the purpose of : in math mode?

What is the purpose of $:$? We know that in math mode one should write in natural language and not being so strict with math notation. For example: $f:A\to B$ is not "correct", the correct way would ...
531 views

### Align $:=$ with $=$ in align/split mode

I am writing a sequence of inequalities in math mode, where the first line defines the first object. To be clear, I have something like \documentclass[12pt]{amsart} \usepackage{amsfonts,graphics,...
431 views

### How to typset $:\iff$ (logical equivalence)? [duplicate]

How shall I typeset ":<=>" in Latex which means "is logical equivalent"? After typing A :\iff B I get Comparing it with A \coloneqq B (cf. How to typeset $:=$ correctly? ): We see that there is a ...
113 views

### Definitions in math formulas [duplicate]

I want to have definitions like $x :=1$ in my tex to look good, and to be really different from a statement of equality like $x = 1$. However, the $:$ and $=$ are not alligned, and this looks ugly. ...
119 views

### Typesetting displayed equivalences and definitions of unequal length

What is the proper way to typeset in LaTeX, in display-mode, a series of equivalences and definitions of unequal lengths of sets ? Consider for this the following code that I used for a series of ...
Sometimes the symbol := is used to denote a definition. For example, X:=Y+Z means that X is defined to be Y+Z. When using LaTeX, can I just use $:=$, or do I need to do something special?