  The Questiones circa logicam (Questions on Logic) were written at roughly the same time as the Perutilis logica and the Questiones circa artem veterem, that is to say about 1356. They explore in a series of disputed questions the status of logic and semantics on topics such as the relation of words to concepts, the difference between natural and conventional signification, etc., as well as the theory of reference and truth. Albert defines signification by representation. He distinguishes two ways of understanding suppositio, the first as the act of the mind itself; the second as an operation constituting one of the properties of terms.