. "The Proving Grounds are some sort of Order training area. This is a very complicated and confusing level; I had to work out the most efficient path through it by using backward chaining (what some puzzle-solvers and other logicians sometimes call \"synthetic reasoning\", although the Wikipedia article of that name claims that to be a metaphysical term rather than a logical one). SPOILER WARNING: Plot details follow."@en . . . . . "The Proving Grounds are some sort of Order training area. This is a very complicated and confusing level; I had to work out the most efficient path through it by using backward chaining (what some puzzle-solvers and other logicians sometimes call \"synthetic reasoning\", although the Wikipedia article of that name claims that to be a metaphysical term rather than a logical one). SPOILER WARNING: Plot details follow."@en . "MAP26: Proving Grounds (Strife)"@en .