Free practice · single-choice · hard

Practice

Apply scheduling constraints

A must occur before B. C must occur after B. Which order satisfies both constraints?

Deduction chain

Preserve direction from premises to conclusion

  1. PremisesSeparate facts and rules
  2. DirectionMark if, only, all, and some
  3. ConnectLink matching terms
  4. ChallengeTry a counterexample
  5. ConcludeState only what is guaranteed

A guaranteed conclusion follows only when stated facts activate rules in their written direction and no counterexample survives.

Choose one answer