(0) Obligation:
Runtime Complexity TRS:
The TRS R consists of the following rules:
implies(not(x), y) → or(x, y)
implies(not(x), or(y, z)) → implies(y, or(x, z))
implies(x, or(y, z)) → or(y, implies(x, z))
Rewrite Strategy: FULL
(1) DecreasingLoopProof (EQUIVALENT transformation)
The following loop(s) give(s) rise to the lower bound Ω(n1):
The rewrite sequence
implies(not(x), or(not(x19_0), z)) →+ implies(x, or(x19_0, z))
gives rise to a decreasing loop by considering the right hand sides subterm at position [].
The pumping substitution is [x / not(x), x19_0 / not(x19_0)].
The result substitution is [ ].
(2) BOUNDS(n^1, INF)
(3) RenamingProof (EQUIVALENT transformation)
Renamed function symbols to avoid clashes with predefined symbol.
(4) Obligation:
Runtime Complexity Relative TRS:
The TRS R consists of the following rules:
implies(not(x), y) → or(x, y)
implies(not(x), or(y, z)) → implies(y, or(x, z))
implies(x, or(y, z)) → or(y, implies(x, z))
S is empty.
Rewrite Strategy: FULL
(5) TypeInferenceProof (BOTH BOUNDS(ID, ID) transformation)
Infered types.
(6) Obligation:
TRS:
Rules:
implies(not(x), y) → or(x, y)
implies(not(x), or(y, z)) → implies(y, or(x, z))
implies(x, or(y, z)) → or(y, implies(x, z))
Types:
implies :: not → or → or
not :: not → not
or :: not → or → or
hole_or1_0 :: or
hole_not2_0 :: not
gen_or3_0 :: Nat → or
gen_not4_0 :: Nat → not
(7) OrderProof (LOWER BOUND(ID) transformation)
Heuristically decided to analyse the following defined symbols:
implies
(8) Obligation:
TRS:
Rules:
implies(
not(
x),
y) →
or(
x,
y)
implies(
not(
x),
or(
y,
z)) →
implies(
y,
or(
x,
z))
implies(
x,
or(
y,
z)) →
or(
y,
implies(
x,
z))
Types:
implies :: not → or → or
not :: not → not
or :: not → or → or
hole_or1_0 :: or
hole_not2_0 :: not
gen_or3_0 :: Nat → or
gen_not4_0 :: Nat → not
Generator Equations:
gen_or3_0(0) ⇔ hole_or1_0
gen_or3_0(+(x, 1)) ⇔ or(hole_not2_0, gen_or3_0(x))
gen_not4_0(0) ⇔ hole_not2_0
gen_not4_0(+(x, 1)) ⇔ not(gen_not4_0(x))
The following defined symbols remain to be analysed:
implies
(9) NoRewriteLemmaProof (LOWER BOUND(ID) transformation)
Could not prove a rewrite lemma for the defined symbol implies.
(10) Obligation:
TRS:
Rules:
implies(
not(
x),
y) →
or(
x,
y)
implies(
not(
x),
or(
y,
z)) →
implies(
y,
or(
x,
z))
implies(
x,
or(
y,
z)) →
or(
y,
implies(
x,
z))
Types:
implies :: not → or → or
not :: not → not
or :: not → or → or
hole_or1_0 :: or
hole_not2_0 :: not
gen_or3_0 :: Nat → or
gen_not4_0 :: Nat → not
Generator Equations:
gen_or3_0(0) ⇔ hole_or1_0
gen_or3_0(+(x, 1)) ⇔ or(hole_not2_0, gen_or3_0(x))
gen_not4_0(0) ⇔ hole_not2_0
gen_not4_0(+(x, 1)) ⇔ not(gen_not4_0(x))
No more defined symbols left to analyse.