to the point if something is to the point, it is connected with what you are discussing:
His writing is always concise and to the point.
Fat is one of the essential parts of our diet. More to the point, the fat in a meal slows the digestive process and gradually releases energy into your blood stream.
Not related
not related / not connected adjective [not before noun]:
Carr-Hill and Stern (1979) have provided clear evidence that unemployment and crime are not related
The effectiveness of the drug was not related to the patient's age.
These events were not connected with each other.
unrelated / unconnected adjective:
Research has shown that performance on these tests is unrelated to intelligence.
The two outbreaks of the disease were apparently unconnected with each other.
She had to have surgery for an unrelated physical problem. (=a physical problem that was not connected to another problem that had been mentioned)
there is no relation / no connection:
Studies have shown that there is no relation between how much coffee you drink and how much food you eat.
There is clearly no connection between the person's gender and their ability to do the job.
bear no relation a formal way of saying that there is no relation between something and another thing:
This belief bears no relation to reality.
separate adjective if two things are separate, they are not the same and are not connected with each other:
The cost of the treatment is an entirely separate issue.
Finance was kept separate from other functions of government.
discrete adjective a formal word meaning separate:
The work is broken down into discrete tasks.
For Descartes, all matter is continuous, and there are no discrete particles of matter.
Psychiatry is discrete from psychology and psychotherapy.
distinct adjective two or more things that are distinct belong to the same general type, but are clearly different from each other in an important way:
A map contains two distinct types of information.
These functions fall into three entirely distinct categories.
He is suffering from a mental disorder, as distinct from a mental illness. (=used when you want to emphasize that you are referring to a particular thing and not another very similar thing)
4. Not related to what you are discussing
irrelevant adjective not related to what you are discussing or what concerns you:
The question of ownership is largely irrelevant.
He spends too much time focussing on irrelevant details.
Most members of the public see these things as simply irrelevant to their daily lives.
have nothing to do with used when you want to say strongly that something is not connected with another thing in any way:
Intelligence has nothing to do with common sense.
The reasons why they want to change the law have nothing to do with fighting terrorism.
have no bearing on if something has no bearing on a situation, it does not affect it and there is no need to consider it:
The new data had no bearing on the outcome of the research.
A recruit's family background should have no bearing on his suitability for officer training.
be beyond/outside the scope of to not be included in the range of things that you are discussing or writing about:
These debates are outside the scope of this essay.
A detailed examination of his theory is beyond the scope of this chapter.
Showing & Proving
To show that something is true
To show that something is likely
To show that something is untrue
1. To show that something is true
show verb [transitive] to provide the facts and information which make it clear that something is true:
A recent survey by Sheffield University showed that 95% of patients were satisfied with the service that they received.
They wanted to show to people how well the system worked.
prove verb [transitive] to show that something is definitely true by providing facts and information, especially when other people have doubted this:
These documents prove that the three men were innocent.
Lind proved that eating fresh oranges and limes could prevent sailors from getting the disease.
He was able to prove his theory to his fellow scientists.
demonstrate verb [transitive] to do something or provide information that makes it very clear to people that something is true:
The aim of the experiments was to demonstrate the effectiveness of the treatment.
It has been demonstrated that even low levels of lead can damage the central nervous system.
STUDY NOTE: Grammar
Prove and demonstrate sound much more definite than show.
something can be seen used when something shows that what you are saying is true:
This can be seen in the following examples.
As can be seen in Table 1, wages have risen at a lower rate than the rate of inflation.
Shaker furniture is extremely well made. Evidence of this can be seen in the surprising number of items that have survived to the present day.
be evidence of used when information shows that something is true or that something exists:
Some people think that this research is evidence of a much larger problem.
In the past, comet and meteorite strikes were much more common in the solar system. The pitted surface of the moon is evidence of that.
be symptomatic of to show that a problem or a bad situation exists:
The protests were symptomatic of a widespread feeling of dissatisfaction wth the government's policies.
reveal verb [transitive] to show that something is true, especially something surprising that many people did not realize:
A recent survey revealed that 61% of those interviewed believe that tobacco advertising should be banned.
The inquiry revealed how hundreds of children in public care were mistreated in the 1980s.
confirm verb [transitive] if something confirms an idea or opinion that people already have, it shows that it is true:
The latest research confirms the view that global warming is happening at an increasing rate.
Several surveys have confirmed that the blood pressure in diabetics is higher than in non-diabetics (Ostrander et al, 1965; Kannel & McGee, 1979).
support/back up verb [transitive] phrasal verb to show that an idea, opinion, or claim is true: