'inevitable corollary' is a correct and usable part of a sentence in written English.
You can use it when describing a result or consequence that is logically and/or naturally connected to a given situation or set of circumstances. For example, "The long hours and pressure to succeed were an inevitable corollary of the job."
The burning of churches was an inevitable corollary of this terrible business.
The inevitable corollary: is God a sort of cultural tooth fairy that adults pass on to their children once they can no longer hold on to him themselves?
After reading the transcripts of the lectures, I raised with Milch the notion that for him the imperative to teach — he met one-on-one with every student — was an inevitable corollary to his belief that the act of writing should be "a going out in spirit".
But the inevitable corollary is that the season can also show the peninsula at its worst: thousands of tourists flock to the classic Venice-Florence-Rome triangle, Italians on vacation flood beaches and mountains, pilgrims swarm to Vatican City for papal Masses in St. Peter's Square.
These female pioneers ushered in a cult of childhood and its inevitable corollary, the demonization of mothers, at whose feet piled up responsibilities for all manner of diseases and dysfunctions, from stuttering to schizophrenia, now understood to be neurochemical and decidedly outside the influence of fads.
It was Thomas's death, seen as the inevitable corollary to the way he conducted his life, that saw this self-consciously difficult poet not only bracketed with other prematurely extinguished poetic meteors like Shelley and Rimbaud, but also claimed by the emergent pop culture.
Now let me be clear: no nation can ever have a veto over American security, even if the United States and Russia cannot reach agreement; even if we cannot secure the support of our allies at first; even if we conclude that the Chinese will respond to N.M.D. by increasing their arsenal of nuclear weapons substantially with a corollary inevitable impact in India and then in Pakistan.
If we have a repeat of the Great Recession, or worse, during the next (inevitable) recession, the political corollary will be increased scapegoating and violence on a scale most of us have not seen in our lifetimes.
If evolution were to reflect an inevitable march of progress, a logical corollary is that modern-day phenomena can be explained by yesterday's precursors.
"This has all happened before" carries with it an unstated corollary, "... and is thus an organic, inevitable and inexorable process – and, presumably, since we are both standing here today having this discussion, with all of our limbs intact, and roofs over our head, not an especially harmful one".
