is mentioned by

Thm* x,y:. x y = 3 x = 3 y = 3

[K_or_equal_Three_2]

In prior sections: core bool 1 rel 1 sqequal 1 prog 1 int 2 list 1 core 3 jlc list 3 jlc

Try larger context: ClassicalProps(jlc)