New characters; indentation

unicode-chars.sty.rkt

@@ -35,6 +35,7 @@
 \restoresymbol{ams}{llcorner}
 \restoresymbol{ams}{lrcorner}
 \usepackage{mathtools}
+\usepackage{tikz}
 \makeatletter
 % Must be loaded after MnSymbol!!! MnSymbol improperly defines × and ¬ in such a
 %   way that they don't work in math mode.
@@ -197,6 +198,7 @@
 \DeclareUnicodeCharacter{2071}{\ensuremath{{}^i}}%                 ⁱ
 \DeclareUnicodeCharacter{02B2}{\ensuremath{{}^j}}%                 ʲ
 \DeclareUnicodeCharacter{1D4F}{\ensuremath{{}^k}}%                 ᵏ
+\DeclareUnicodeCharacter{2093}{\ensuremath{{}_x}}%                 ₓ
 %s
 \DeclareUnicodeCharacter{2026}{\ensuremath{\dots}}%                …
 
@@ -357,5 +359,9 @@
 \DeclareUnicodeCharacter{3A0}{\ensuremath{\Pi}}%                   Π
 \DeclareUnicodeCharacter{2216}{\ensuremath{\setminus}}%            ∖
 \DeclareUnicodeCharacter{22A5}{\ensuremath{\bot}}%                 ⊥
+\DeclareUnicodeCharacter{3C8}{\ensuremath{\psi}}%                  ψ
+\DeclareUnicodeCharacter{3B2}{\ensuremath{\beta}}%                 β
+\DeclareUnicodeCharacter{2772}{\tikz[baseline=0.2ex]\draw[line cap=round] (0,0) ++(-30:0.7ex) -- ++(-30:-0.7ex) -- ++(0,1.6ex) -- ++(30:0.7ex) {};}%           ❲
+\DeclareUnicodeCharacter{2773}{\tikz[baseline=0.2ex]\draw[line cap=round] (0,0) ++(-150:0.7ex) -- ++(-150:-0.7ex) -- ++(0,1.6ex) -- ++(150:0.7ex) {};}%        ❳
 \makeatother
 }>>>|)