Affirmation that is made about something or someone
An assertion turns out to be the assertion of something by someone.
Although, in a way, an assertion is a little more than a simple statement , since it implies a categorical statement on the question in question, that is, whoever makes an assertion is affirming something safely and with full knowledge of the facts caused by the reality that is mentioned.
Meanwhile, yes, which by the way turns out to be one of the words that we use most frequently within the Spanish language, formally, is an adverb of affirmation that is usually used in response to a question, although, in addition to this main function, it is recurrently used when it is necessary to affirm something with special vigor, that is to say, in a categorical way, so that there are no doubts, for example: “the dress that Laura wore for a party was ugly”. Other examples of very popular phrases that refer an assertion are: ready, really, sure yes, of course, done, copied, affirmative and resolved, among others.
Synonym of affirmation
Almost always the term assertion is used as a synonym for affirmationMeanwhile, an affirmation is that act through which we grant our absolute and total assent and commitment by expressing that this or that statement is valid. An affirmation will always be revealing knowledge, although not for that reason what is being affirmed, asserting, even when it is done with great confidence, has to be true. It may happen that something that is assured is actually not true.
So, this is very important to make it clear, someone's assertion about something does not necessarily imply that what they affirm is true and should be taken as true.
Very present in science
Assertions are statements about something someone does. For example, a student of a subject conducts research on that question and prepares a report in which he asserts various questions resulting from his analysis. Now, it may happen that other colleagues contradict or deny their assertions by proposing data and, in turn, the scientist in question may put the information and evidence that he collected in his research before him to argue his assertions.
Meanwhile, from this comparison of assertions with their corresponding evidence, it will be possible to get to know which of the two is closer to the truth on the matter.
The assertions are certainly common in the scientific environment and at the request of the realization of investigations and discoveries. But of course and as we said before, they can be valid and correct but they can also not be.
Basically science is a discipline that is made up of various assertions that can precisely be empirically contrasted. And that is precisely the work that scientists do at every step. They carry out studies, many of them accompanied by tests that later allow making statements about it.
And of course it can happen that a colleague disagrees and proposes another way to get to know something.
And in everyday life too
In our daily life there are many statements that we make about various situations, topics and people, that is, the statement is something very common for everyone and is closely linked to the conversations we have with those around us ... "the neighbor of the seventh she is the one that left the elevator door open ”; "This greengrocer increases prices every week", to name a few examples.
The concept that is opposed is that of negation that is used to indicate that something does not exist or that it lacks veracity.
