An anti-sceptical argument schema

1. Concept C is not further analyzable.
2. If C is an actually-had (by a human being) concept that is not further analyzable, then C is possibly satisfied.
3. If C is an actually-had concept that is not further analyzable, then, probably, C is actually satisfied.
4. Someone actually has the concept C.
5. Therefore, both possibly and probably there is something that has C.

Plausible cases: causation, materiality, possibility, goodness, consciousness, numinousness, etc.