Cipher

Got the hints: solutions, 2nd P, their similarities, and the coordinates.
But still don't get it, don't know how to get the equivalent le****s of the coordinates.
Anyone's on? Please help! TIA!

There's a logical order and pattern to everything.

And think some fundamental patterns. Haha.

We've found two things we can check for similarities, worked out the meaning of the four equalities, and come up with a promising solution that doesn't seem to work. How can we check if we've done the right thing?