SOLUTION: ~M, (~M � ~N) → (Q → P), P → R, ~N, therefore, Q → R

Algebra.Com
Eval error:

ModPerl::Util::exit: (120000) exit was called at /home/ichudov/project_locations/algebra.com/templates/Algebra/Questions/MoreLikeThis.pm line 159

SOLUTION: ~M, (~M � ~N) &#8594; (Q &#8594; P), P &#8594; R, ~N, therefore, Q &#8594; R