A question concerning formal modal logic Aristotle did, indeed, describe the figures of syllogism just as he did with countless other forms of spirit and nature, but in his metaphysical concepts he was so far from seeking to make the form of the syllogism of the understanding the basis and criterion that one might say not a single one of the metaphysical concepts could have arisen or stood on ground, if it had been subjected to the laws of logic. Even if, in his own way, Aristotle began much that is essentially a product of description and of understanding, the speculative concept is always what is dominant for him, and he does not allow the forms of syllogism to govern or encroach on the sphere of speculative philosophy- Hegel in "Logic"