# Not so fast Walid Saba

## We definitely learn common sense

One of my newly found and favourite authors on logic, Walid Saba, just posted an article with the title “Why Commonsense Knowledge is not (and can not be) Learned”.

Woh! Now there is a challenge for you. Take it if you dare.

I do.

My research revolves around all of logic falling under game theory and where theorems of a formal system of logic only make sense to any two people if and only if those two people have a shared interpretation and use of that theory of logic. E.g. Ehrenfeucht Fraisse Games can be extended to theories of higher order logic and are not limited to finite model theory.

Let us look at Walid’s claims. He says that when we look at the following sentences we only have one logical common sense interpretation for each:

(1) *Jon has a Greek statue in every room in his house*(2)

*Jon broke his leg when his family had a car accident near Toronto.*

The presumed common sense interpretations:

(1) refers not to one, but to many statues since one cannot have a Greek statue (a physical artifact) in more than one location — in NLU lingo, the challenge in (1) is usally in resolving

quantifier scope ambiguities. Similarly, a 4-year old knows where Jon broke his leg upon hearing (2), since the location of a sub-event is always the location of the main/larger event. This can be expressed as shown in figure 1 below —…