Abstract
Quantitative Equational Logic, or "QEL" for short, is a proof
system which extends Birkhoff's equational logic. QEL is used to
reason about quantitative algebras, and was shown to be complete for
the defined semantics. While classical equational logic is known to be
undecidable, I will give a sketch of the proof that all of the "other"
content of QEL is decidable.