\documentclass[a4paper,leqno]{strayman}
\let\numberwithin=\notdef
+\usepackage{amsmath}
\usepackage{mathabx}
\usepackage{stmaryrd}
\usepackage{slashed}
\newcommand{\hasparents}{>_{\mkern-7.0mu _1}}
\newcommand{\areparents}{<_{\mkern-14.0mu _1\mkern+5.0mu}}
-\newcommand{\implies}{\Rightarrow}
+\renewcommand{\implies}{\Rightarrow}
\newcommand{\pancs}[2]{{\mathcal A} ( #1 , #2 ) }
\newcommand{\pends}[2]{{\mathcal E} ( #1 , #2 ) }
+\renewcommand{\land}{\wedge}
+
\begin{document}
\section{Notation}
\section{Invariants}
-$$ C \has D \implies C \ge D \eqno{No replay} $$
+\[ C \has D \implies C \ge D \tag*{\mbox{No replay:}} \]
Unique base: \[ \mathop{\forall}_{C \in \py} \pends{C}{\pn} = \{ B \} \]