Error while merging and converting two markdown files to pdf using pandoc

Question

I'm using to pandoc to create pdf via following command:

pandoc -s -o analysis.pdf latex_header.md Analysis.md

The following error is shown :

Error producing PDF.
! Undefined control sequence.
l.129 ...uence of real number is a function,(f:\N

Content of latex_header.md

$$
\newcommand{\R}{\mathbb{R}}
\newcommand{\com}{\mathbb{C}}
\newcommand{\N}{\mathbb{N}}
\newcommand{\Z}{\mathbb{Z}}
\newcommand{\e}{\varepsilon}
\newcommand{\sequence}[1]{(#1_n){n=1}^{\infty}}
\newcommand{\braces}[1]{\left{#1\right}}
\newcommand{\ra}{\rightarrow}
\newcommand{\pdiff}[2]{\frac{\partial #1}{\partial #2}}
\newcommand{\diff}[3]{\frac{d^{#3}#1}{d#2^{#3}}}
\newcommand{\summ}[2]{\sum{#1}^{#2}}
\newcommand{\fbraks}[1]{\left(#1\right)}
\newcommand{\tbraks}[1]{\left[#1\right]}
$$

The line in Analysis.md where the error is creeping in:

1. A sequence of real number is a function,$f:\N \ra \R$ . Commonly represented as $\sequence{a} = \braces{a_1, a_2, a_3, \cdots}$.

I also used the pandoc to get the intermediate tex. I can see the problem in line 61 and 75 of the tex file \[...\]. I don't know how to fix it.

Thanks in advance!

Answer 1

Welcome to TeX.SX!

The error arises from your \braces command: use \left\lbrace and \right\rbrace as delimiters.

In addition, still in the latex_header.md, the $$ are useless.