The phrase "assumption has come" is not correct and does not convey a clear meaning in written English.
It may be intended to express that a certain assumption has been made or accepted, but the phrasing is awkward and unclear.
Example: "The assumption has come that we will finish the project by next week."
Alternatives: "the assumption has arisen" or "the assumption has been made".
The decision Wednesday overturning New York State's system of financing public schools was based on an assumption that has come under severe challenge in recent years: that the key to higher student achievement is more spending on schools.
Furthermore, reliance on others for protection assumes equal treatment by law enforcement to all races in all areas, an assumption that has come under fire in recent months.
Communism & democracy to settle the fate of the world still survives as one of our fundamental foreign-policy assumptions, but it has come to be a source of frustration for us.
Support for the assumptions of attentional control theory has come from behavioral studies that have used performance accuracy to assess effectiveness and response times to assess effort and efficiency (Ansari & Derakshan, 2010; Ansari, Derakshan, & Richards, 2008; Derakshan, Ansari, Hansard, Shoker, & Eysenck, 2009; Derakshan, Smyth, & Eysenck, 2009).
It tallies with a growing public assumption that too much of British policing has come to regard self-preservation, obfuscation and downright dirty trickery as their prerogative".
HWME has come into truth from assumption.
The easy assumption is that Ice Cube's film success has come on the back of his music career.
The widespread assumption that TS is cell cycle dependent enzyme has come from studies that, for the most part, have used rodent models.
The assumption that Russia's natural level of GDP growth is 4% has come under threat.
The uprising has come to change many political givens and taken-for-granted assumptions.
