[Fyron]

You can make OR requirements. It would look something like:

Requirements Evaluation Availability := OR
Requirements Evaluation Allows Placement := TRUE
Requirements Evaluation Allows Usage := TRUE
Requirement 1 Description := Empire must have at least tech level 1 in A.
Requirement 1 Formula := Get_Empire_Tech_Level("A") >= 1
Requirement 2 Description := Empire must have at least tech level 1 in B.
Requirement 2 Formula := Get_Empire_Tech_Level("B") >= 1
Requirement 3 Description := Empire must have at least tech level 1 in C.
Requirement 3 Formula := Get_Empire_Tech_Level("C") >= 1