An Antinomy (n.) is the mind's own arrangement — time and space and causality are not things out there, but modes of arrangement and classification which the mind applies to sense-experience.
An Antinomy (n.) is an insoluble dilemma born of a science that tries to overleap experience.
An Antinomy (n.) is the vain attempt of reason to escape from the enclosing circle of sensation and appearance into the unknowable world of things "in themselves."
An Antinomy (n.) is, for example, the impossible position where thought fails at conceiving a universe that either has a beginning in time or does not. Neither position makes sense.
An Antinomy (n.) is, for example, the impossible position where thought fails at conceiving a world that is either finite or infinite in space. Neither position makes sense.