| ∃ n0. 2^ n + n0 = 2^ #fz(m), m + 1 = 2^ #fz(m) * lead(m), n < #fz(m), m < 2^ n ⊦ |
2^ n + n0 = 2^ #fz(m), m + 1 = (2^ n + n0) * lead(m), n < #fz(m), m < 2^ n ⊦
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ m + 1 ≤ n ↔ m < n], [CSIMPSEQ : ⊦ m + n = n + m], [CSIMPSEQ : ⊦ (m + n0) + n1 = m + n0 + n1], [CSIMPFORWARD : ⊦ m = n + 1 ∧ n < n0 → m ≤ n0])]]