Answer "true" or "false" to the following statements:
1. Every syllogism is a categorical syllogism.
2. Some categorical syllogisms cannot be put into standard form.
3. The statements in a categorical syllogism need not be expressed in standard form.
4. The statements in a standard-form categorical syllogism need not be expressed in standard form.
5. In a standard-form categorical syllogism the two occurrences of each term must be identical.
6. The major premise of a standard-form categorical syllogism contains the subject of the conclusion.
7. To determine its mood and figure, a categorical syllogism must first be put into standard form.
8. In a standard-form syllogism having Figure 2, the two occurrences of the middle term are on the right.
9. The unconditionally valid syllogistic forms are valid from both the Boolean and the Aristotelian standpoints.
10. The conditionally valid syllogistic forms are invalid if the requisite condition is not fulfilled.