>>syllogisms from last bread
I don't know proof by inference with a valid argument. Going to look this up now, also ebots post was not what I thought. Ebot said modus tollendo ponens, or disjunctive syllogism. I don't get it yet, but it contains an "or", starts with "either A or B".
Contrapositive is true:
If (A implies B) then (not B implies not A)
But
If (Q has Q access) then (he is real)
An inverse is not necessarily true:
If (Q does not have Q access) then (he is not real)