What tactic should I use to derive a contradiction from an absurd equality?

Question

Let's say that I have H: 0 = 1 in scope. How can I use this to conclude False?

score 1 · Accepted Answer · answered May 10 '17 at 21:59

1

You should use the tactic discriminate.

answered May 10 '17 at 21:59

1

Or `ediscriminate` / `congruence` / `inversion ` / `easy`. It depends on what one is trying to achieve. – Anton Trunov May 11 '17 at 06:40

1 Answers1