/usr/share/perl5/Math/Symbolic/ is in libmath-symbolic-perl 0.612-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Math/Symbolic/AuxFunctions.pm
/usr/share/perl5/Math/Symbolic/Base.pm
/usr/share/perl5/Math/Symbolic/Compiler.pm
/usr/share/perl5/Math/Symbolic/Constant.pm
/usr/share/perl5/Math/Symbolic/Custom/
/usr/share/perl5/Math/Symbolic/Custom.pm
/usr/share/perl5/Math/Symbolic/Custom/Base.pm
/usr/share/perl5/Math/Symbolic/Custom/DefaultDumpers.pm
/usr/share/perl5/Math/Symbolic/Custom/DefaultMods.pm
/usr/share/perl5/Math/Symbolic/Custom/DefaultTests.pm
/usr/share/perl5/Math/Symbolic/Derivative.pm
/usr/share/perl5/Math/Symbolic/ExportConstants.pm
/usr/share/perl5/Math/Symbolic/MiscAlgebra.pm
/usr/share/perl5/Math/Symbolic/MiscCalculus.pm
/usr/share/perl5/Math/Symbolic/Operator.pm
/usr/share/perl5/Math/Symbolic/Parser/
/usr/share/perl5/Math/Symbolic/Parser.pm
/usr/share/perl5/Math/Symbolic/Parser/Precompiled.pm
/usr/share/perl5/Math/Symbolic/Parser/Yapp.pm
/usr/share/perl5/Math/Symbolic/Variable.pm
/usr/share/perl5/Math/Symbolic/VectorCalculus.pm