"contingent existence" is a correct and usable phrase in written English.
It is typically used in philosophical or academic discussions to refer to something that may or may not exist, depending on certain conditions or circumstances. Example: "The concept of free will is often debated, as some argue that it is a necessary component of contingent existence while others believe it to be an illusion."
In the case of contingent existence, an object exists contingently just in case its concept is neither connected to the concept of existence nor to something else whose concept is connected to (the concept of) existence.
My point was to affirm that this mere accident of contingent existence had no rhyme nor reason and could not be blamed on anything or anyone.
Divine activity is not the only possible way of understanding the character of the universe, its contingent existence, the unconditional claims of morality, or the occurrence of religious experiences and "miracles".
To the religious, the way to give meaning to this meaningless and purely contingent existence is to imbue it with necessity, make it some part of a greater plan and to present us as a species that is uniquely here to fulfil some sort of purpose.
There is no contingent existence.
When he says that creatures have possible or contingent existence, he identifies the two kinds of existence: "possible or [vel] contingent existence".
Since mathematical statements such as 'The first prime number after 1,000,000 is 1,000,003' are necessary truths and can only be rendered true by the existence of a contingent being, Lowe concludes that there necessarily exists at least one contingent being.
Because its existence is not contingent on or necessitated by something else but is necessary and eternal in itself, it satisfies the condition of being the necessitating cause of the entire chain that constitutes the eternal world of contingent existing things.
(Or, alternatively, a causally necessary condition of the existence of every contingent being and the causally sufficient condition [in the strong sense] of the existence of at least one of them. For the sake of brevity we will focus exclusively on the simpler case, however).
One argument given in defense of this thesis is that the existence of one contingent being may be necessary for the nonexistence of some other contingent being.
Premise 4 is true by virtue of the Principle of Excluded Middle: what explains the existence of the contingent being either are solely other contingent beings or includes a non-contingent (necessary) being.
