varrho cmm 37 0 mathord ϱ
varsigma cmm 38 86 mathord ς
varphi cmm 39 106 mathord ϕ
+slash cmr 47 47 mathord /
Gamma cmr 161 71 mathalpha Γ
Delta cmr 162 68 mathalpha Δ
Theta cmr 163 81 mathalpha Θ
\def\ne{\not=} mathrel ≠
\def\lnot{\neg} mathord ¬
\def\notin{\not\in} mathrel ∉
-\def\slash{/}
\def\joinrel{\mathrel{\kern-3mu}}
\def\relbar{\lyxbar}