[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 68 from proof ks-RED1 (previous step)

〈RED1(ks(n0); tn)〉 tn = tn1, tn0 = none → n0 ≤ 1, tn0 ≠ none → ¬ n0 ≤ 1 ∧ tn0 = some(ks(n0 - 2)), ¬ (ap(ks(n0)) ∧ ks(n0) .1 = K ∧ value(ks(n0) .2)), ¬ (ap(ks(n0)) ∧ ap(ks(n0) .1) ∧ ks(n0) .1 .1 = S), tn1 = tn0, ¬ tn1 ≠ none, value(ks(n0)) ⊦ 〈RED1(K; tn1)〉〈if tn1 ≠ none then tn1 := some(ks(n0) _ tn1 .t)〉 ((tn1 = none → n0 = 0) ∧ (tn1 ≠ none → n0 ≠ 0 ∧ tn1 = some(ks(n0 + 1 - 2))))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 67:
〈RED1(ks(n0); tn)〉 tn = none, value(ks(n0)), n0 ≤ 1, ¬ (ap(ks(n0)) ∧ ks(n0) .1 = K ∧ value(ks(n0) .2)), ¬ (ap(ks(n0)) ∧ ap(ks(n0) .1) ∧ ks(n0) .1 .1 = S) ⊦ 〈RED1(K; tn1)〉〈if tn1 ≠ none then tn1 := some(ks(n0) _ tn1 .t)〉 ((tn1 = none → n0 = 0) ∧ (tn1 ≠ none → n0 ≠ 0 ∧ tn1 = some(ks(n0 + 1 - 2))))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]