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Proof step 107 from proof ks-RED (previous step)

∀ n0. n0 < n → (true → 〈RED(ks(n0); t)〉 ((even(n0) → t = K) ∧ (odd(n0) → t = K _ K))) ⊦ 〈RED(ks(n); t)〉 ((even(n) → t = K) ∧ (odd(n) → t = K _ K))

User applied rule cut formula

And obtained the following new goals

Proof step 91:
∀ n0. n0 < n → (true → 〈RED(ks(n0); t)〉 ((even(n0) → t = K) ∧ (odd(n0) → t = K _ K))), n = 0 ∨ n = 1 ⊦ 〈RED(ks(n); t)〉 ((even(n) → t = K) ∧ (odd(n) → t = K _ K))
Proof step 106:
∀ n0. n0 < n → (true → 〈RED(ks(n0); t)〉 ((even(n0) → t = K) ∧ (odd(n0) → t = K _ K))), ¬ (n = 0 ∨ n = 1) ⊦ 〈RED(ks(n); t)〉 ((even(n) → t = K) ∧ (odd(n) → t = K _ K))

Rule argument

[fma-arg: (n = 0 ∨ n = 1)]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRAFMAS : ((n = 0 ∨ n = 1))]]