Given the meanings of the atomic predicates in the blocks language, assess the following arguments for validity. $($You may again assume any general facts about the worlds that can be built in Tarski's World.$)$ If the argument is valid, give an informal proof of its validity and turn it in on paper to your instructor. If the conclusion is not a consequence of the premises, submit a world in which the premises are true and the conclusion false.

LeftOf$($a$,$b$)$

RightOf$($c$,$a$)$

LeftOf$($b$,$c$)$