What is "sorying" ?
The passage below comes from a TOFEL textbook
"How can that be? Everyone kows that the sun is at the center of the solar system." OK, but that's a testament to how truly marvelous the Ptolemaic system actuaally was. Of course, the Earth is NOT at the center of the solar system, sorying to explain the observed motion of the planets based on that fundamental misconception should be impossible. Right?
Is "sorying" a typo ot something else?