[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 47 from proof diag-theorem-butlast (previous step)

# nextl(0, a) = ii(1) + 1, a0 ' = nextl(m, x[ii(n)]), 1 + ii(n) = # x, x[ii(n)] = lf(m).last, ii(m) = ii(n), ii(n0 + 1) = ii(n0) + # lf(n0 + 1) - 1, ii(0) = 0, lf(m + 1) = a0 ', lf(1) = nextl(0, a), lf(0) = a ', lf(n0 + 1) = nextl(n0, lf(n0).last), nextl(0, a) = a ' + y, (x from ii(n0)) to # lf(n0 + 1) = lf(n0 + 1), x to ii(1) + 1 = nextl(0, a), a ∈ nextl(0, a), n ≤ m, ii(n0 + 1) ≤ ii(n), ii(1) ≤ ii(n), ∀ n1. ii(n1 + 1) = ii(n1) + # lf(n1 + 1) - 1 ∧ ¬ ii(n) < ii(n1 + 1) ∧ (x from ii(n1)) to # lf(n1 + 1) = lf(n1 + 1), ∀ m, n. m ≤ n → ii(m) ≤ ii(n), ∀ n. lf(n + 1) = nextl(n, lf(n).last) ∧ lf(n) ≠ [], ∀ n, a. nextl(n, a) ≠ [] ∧ nextl(n, a).head = a ⊦ a0 = x[ii(n)], lf(n0) = [], lf(m) = [], nextl(0, a) = [], x = []

User applied rule all left

And closed the goal!

Rule argument

pos: left 22 terms: m, x[ii(n)] abort: F discard: F computed: T

Additional information

Used simplifier rules: ⊦ a '.head = a; (s) Used terms: m, x[ii(n)]