I wonder if this is the 'relational lisp' in question
https://www.ap5.com/ap5-man.html
or
https://ieeexplore.ieee.org/document/13081
I wonder if this is the 'relational lisp' in question
https://www.ap5.com/ap5-man.html
or
https://ieeexplore.ieee.org/document/13081