| gcd(m, gcd(n, n0)) | gcd(m, n) ∧ gcd(m, gcd(n, n0)) | n0 → gcd(m, gcd(n, n0)) | gcd(gcd(m, n), n0) ⊦ gcd(m, gcd(n, n0)) | gcd(gcd(m, n), n0) |
⊦ gcd(m, gcd(n, n0)) | gcd(gcd(m, n), n0), gcd(m, gcd(n, n0)) | n0
Used simplifier rules: gcd-div-02: ⊦ gcd(m, gcd(n, n0)) | gcd(m, n);