Let us start with the hypothesis: | ‘All infections are caused by bacteria’ |
From this we deduce: | ‘Therefore, abscesses are caused by bacteria’ |
From which we can devise an experiment: | We should be able to culture bacteria from the pus |
The result of our experiment is: | Staph. aureus grown on agar plates |
Does this prove the hypothesis? | No, because the result of the experiment is also compatible with the theory that all infections are caused by bacteria or fungi |