Level: Lib Thy Top: 1 2
Hypotheses:

  1. n : {1...}

  2. m : n

  3. E : n n

  4. EquivRel(n;i,j.i E j)

  5. EquivRel(m;i,j.i E j)

Conclusion:

x,y:i,j:m//(i E j). x = y x = y

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

1. x = y x = y