1 \documentclass[a4paper]{article}
8 \renewcommand{\ge}{\geqslant}
9 \renewcommand{\le}{\leqslant}
11 \newcommand{\has}{\sqsupseteq}
12 \newcommand{\isin}{\sqsubseteq}
14 \newcommand{\nothaspatch}{{%
15 \declareslashed{}{\sslash}{-0.04}{0}{\Sqsupset}\slashed{\Sqsupset}}}
16 \newcommand{\notpatchisin}{{%
17 \declareslashed{}{\sslash}{-0.04}{0}{\Sqsubset}\slashed{\Sqsubset}}}
18 \newcommand{\haspatch}{\Sqsupset}
19 \newcommand{\patchisin}{\Sqsubset}
21 \newcommand{\pa}[1]{\mathbb #1}
22 \newcommand{\pay}[1]{\pa{#1}^+}
23 \newcommand{\pan}[1]{\pa{#1}^-}
25 \newcommand{\p}{\pa{P}}
26 \newcommand{\py}{\pay{P}}
27 \newcommand{\pn}{\pan{P}}
29 %\newcommand{\hasparents}{\underaccent{1}{>}}
30 %\newcommand{\hasparents}{{%
31 % \declareslashed{}{_{_1}}{0}{-0.8}{>}\slashed{>}}}
32 \newcommand{\hasparents}{>_{\mkern-7.0mu _1}}
33 \newcommand{\areparents}{<_{\mkern-14.0mu _1\mkern+5.0mu}}
44 $ A \not \sqsubseteq B $
53 $ A \nothaspatch \pa{C} $
54 $ A \nothaspatch \py $
55 $ A \nothaspatch \p_C^+ $
56 $ A \nothaspatch \pan{C} $