\usepackage{amsfonts}
\usepackage{eufrak}
\usepackage{mdwlist}
+\usepackage{hyperref}
%\usepackage{lastpage}
%\usepackage{accents}
\newcommand{\tipdn}{ \tipa \pdn }
\newcommand{\tipdy}{ \tipa \pdy }
+\newcommand{\tippn}{ \tipa \pn }
\newcommand{\tippy}{ \tipa \py }
%\newcommand{\bigforall}{\mathop{\hbox{\huge$\forall$}}}