more robust (see https://code.visualstudio.com/docs/extensionAPI/document-selectors);
theory Decision_Procs
imports
Commutative_Ring
Cooper
Ferrack
MIR
Approximation
Dense_Linear_Order
Parametric_Ferrante_Rackoff
Commutative_Ring_Complete
"ex/Commutative_Ring_Ex"
"ex/Approximation_Ex"
"ex/Approximation_Quickcheck_Ex"
"ex/Dense_Linear_Order_Ex"
begin
end