1 - Given the dearth of patients studied and apparent study design weaknesses in most trials, is it possible to infer whether surgery is beneficial?

2 - Logic trains the mind to draw the right conclusion, and to avoid the wrong, to make the true inference and not the false.

3 - By identifying the logical connections between each persona's behaviors, you can begin to infer the goals that lead to those behaviors.

4 - Based on the appearance of the smaller eating apparatus, the researchers infer that humanity discovered the benefits of cooking about 1.9 million years ago.

5 - Black holes are invisible, but astronomers can infer their existence because the material they pull in lights up before it gets sucked in.