The phrase "alternative assertions" is correct and usable in written English.
It can be used when discussing different claims or statements that offer different perspectives or conclusions on a particular issue.
Example: "In the debate about climate change, there are several alternative assertions regarding the causes and effects that need to be considered."
Alternatives: "different claims" or "varied statements".
An alternative assertion to the genome reduction hypothesis is that species found in similar environments tend to have genomes with similar AT content regardless of phylogenetic relationship [ 39, 40].
Those who can't or won't are charlatans, falsely presenting speculation, wishful thinking, or baseless assertions as alternative facts.
The show is headlined by Liz Phair, who is the Nancy Sinatra of alternative rock, alternately kittenish and aggressive in songs of self-assertion and troubled romance.
In such circumstances, the audience should look for an alternative interpretation of the assertion.
Passionate assertions of some alternative way?
In 1994, when a discredited Conservative government was in power but everyone knew that Labour would get in whenever an election was called, pop culture rushed into the gap and gave expression to a kind of surging, utopian longing that was both a desperate reaction to the effects of neoliberalism and an optimistic assertion that an alternative Britain was possible.
Therefore, we do not follow this way and give a simple alternative proof of a related assertion for discrete time scales.
Consequently, this alternative standpoint is based on the assertion that brightly colored secondary sexual characteristics evolved as a response to the visual adaptations.
One of her celebrated methods in browbeating colleagues and constituents alike we've inherited is "Tina" – the repeated assertion that "there is no alternative".
Spicer's assertion was immediately met with alternative facts on social media proving that Mr. Trump has in fact worn many bathrobes over the years.
