Existence is determinate being; its determinateness is existent determinateness, quality. Through its quality, something is opposed to an other; it is alterable and finite, negatively determined not only towards an other, but absolutely within it. This negation in it, in contrast at first with the finite something, is the infinite; the abstract opposition in which these determinations appear resolves itself into oppositionless infinity, into being-for-itself.
The treatment of existence is therefore in three divisions: A. existence as such B. something and other, finitude C. qualitative infinity.
Existence is the simple unity of being and nothing. As simple, it has the form of immediacy. However, it is the sublation of becoming, and hence is in reality mediated. Existence is “Dasein” or “being-there”, i.e., “being in a place”, however “place” should not be interpreted spatially, but rather interpreted as “with determinacy”, so existence is determinate being. The simple unity of being and nothing, that is existence, has the form of the determinateness of being. Hegel notes that this form is only apparent, it only exists in our minds. What is truly posited in existence is the determinateness as such of existence, not the determinateness of being.
Hegel gives a definition of determinateness as such: “non-being taken up into simple unity with being with the result that the whole is in the form of being, of immediacy”.