| 1 | Separates descriptive issues related to the nature of knowledge from essential issues. |
| 2 | Compares the solution suggestions for Gettier problem. |
| 3 | Comprehends the enigmatic structure of the justification or the Trillem of Agrippan |
| 4 | Interpret basicist and adaptive approaches |
| 5 | Understands the paradoxical structure of radical skeptical arguments. |
| 6 | Interpret alternative approaches to the nature of information and justification. |