Level: Lib Thy Top:
Hypotheses:

None

Conclusion:

n:{1...}. E:n n . EquivRel(n;i,j.i E j) (x:i,j:n//(i E j). (x = n - 1) x i,j:(n - 1)//(i E j))


Applied Tactic: (UnivCD ...a)
Generated subgoals:

1. x i,j:(n - 1)//(i E j)

2. n - 1 i,j:n//(i E j)