We consider the following Problem: Strict Trs: { and(x, false()) -> false() , and(x, not(false())) -> x , not(not(x)) -> x , implies(false(), y) -> not(false()) , implies(x, false()) -> not(x) , implies(not(x), not(y)) -> implies(y, and(x, y))} StartTerms: basic terms Strategy: innermost Certificate: YES(?,O(n^1)) Proof: We consider the following Problem: Strict Trs: { and(x, false()) -> false() , and(x, not(false())) -> x , not(not(x)) -> x , implies(false(), y) -> not(false()) , implies(x, false()) -> not(x) , implies(not(x), not(y)) -> implies(y, and(x, y))} StartTerms: basic terms Strategy: innermost Certificate: YES(?,O(n^1)) Proof: The weightgap principle applies, where following rules are oriented strictly: TRS Component: { and(x, false()) -> false() , and(x, not(false())) -> x , implies(false(), y) -> not(false())} Interpretation of nonconstant growth: ------------------------------------- The following argument positions are usable: Uargs(and) = {}, Uargs(not) = {}, Uargs(implies) = {2} We have the following EDA-non-satisfying and IDA(1)-non-satisfying matrix interpretation: Interpretation Functions: and(x1, x2) = [1 0] x1 + [0 0] x2 + [1] [0 1] [0 0] [1] false() = [0] [0] not(x1) = [1 0] x1 + [0] [0 1] [0] implies(x1, x2) = [1 0] x1 + [1 0] x2 + [1] [0 0] [1 0] [1] The strictly oriented rules are moved into the weak component. We consider the following Problem: Strict Trs: { not(not(x)) -> x , implies(x, false()) -> not(x) , implies(not(x), not(y)) -> implies(y, and(x, y))} Weak Trs: { and(x, false()) -> false() , and(x, not(false())) -> x , implies(false(), y) -> not(false())} StartTerms: basic terms Strategy: innermost Certificate: YES(?,O(n^1)) Proof: The weightgap principle applies, where following rules are oriented strictly: TRS Component: {implies(x, false()) -> not(x)} Interpretation of nonconstant growth: ------------------------------------- The following argument positions are usable: Uargs(and) = {}, Uargs(not) = {}, Uargs(implies) = {2} We have the following EDA-non-satisfying and IDA(1)-non-satisfying matrix interpretation: Interpretation Functions: and(x1, x2) = [1 0] x1 + [0 0] x2 + [0] [0 1] [0 0] [1] false() = [0] [0] not(x1) = [1 0] x1 + [0] [0 1] [0] implies(x1, x2) = [1 0] x1 + [1 0] x2 + [1] [0 1] [1 0] [1] The strictly oriented rules are moved into the weak component. We consider the following Problem: Strict Trs: { not(not(x)) -> x , implies(not(x), not(y)) -> implies(y, and(x, y))} Weak Trs: { implies(x, false()) -> not(x) , and(x, false()) -> false() , and(x, not(false())) -> x , implies(false(), y) -> not(false())} StartTerms: basic terms Strategy: innermost Certificate: YES(?,O(n^1)) Proof: The weightgap principle applies, where following rules are oriented strictly: TRS Component: {not(not(x)) -> x} Interpretation of nonconstant growth: ------------------------------------- The following argument positions are usable: Uargs(and) = {}, Uargs(not) = {}, Uargs(implies) = {2} We have the following EDA-non-satisfying and IDA(1)-non-satisfying matrix interpretation: Interpretation Functions: and(x1, x2) = [1 0] x1 + [0 0] x2 + [1] [0 1] [0 0] [1] false() = [0] [0] not(x1) = [1 0] x1 + [2] [0 1] [0] implies(x1, x2) = [1 0] x1 + [1 0] x2 + [3] [0 1] [0 0] [1] The strictly oriented rules are moved into the weak component. We consider the following Problem: Strict Trs: {implies(not(x), not(y)) -> implies(y, and(x, y))} Weak Trs: { not(not(x)) -> x , implies(x, false()) -> not(x) , and(x, false()) -> false() , and(x, not(false())) -> x , implies(false(), y) -> not(false())} StartTerms: basic terms Strategy: innermost Certificate: YES(?,O(n^1)) Proof: The weightgap principle applies, where following rules are oriented strictly: TRS Component: {implies(not(x), not(y)) -> implies(y, and(x, y))} Interpretation of nonconstant growth: ------------------------------------- The following argument positions are usable: Uargs(and) = {}, Uargs(not) = {}, Uargs(implies) = {2} We have the following EDA-non-satisfying and IDA(1)-non-satisfying matrix interpretation: Interpretation Functions: and(x1, x2) = [1 0] x1 + [0 0] x2 + [1] [0 1] [0 0] [0] false() = [0] [0] not(x1) = [1 0] x1 + [2] [0 1] [0] implies(x1, x2) = [1 0] x1 + [1 0] x2 + [3] [0 1] [0 1] [1] The strictly oriented rules are moved into the weak component. We consider the following Problem: Weak Trs: { implies(not(x), not(y)) -> implies(y, and(x, y)) , not(not(x)) -> x , implies(x, false()) -> not(x) , and(x, false()) -> false() , and(x, not(false())) -> x , implies(false(), y) -> not(false())} StartTerms: basic terms Strategy: innermost Certificate: YES(O(1),O(1)) Proof: We consider the following Problem: Weak Trs: { implies(not(x), not(y)) -> implies(y, and(x, y)) , not(not(x)) -> x , implies(x, false()) -> not(x) , and(x, false()) -> false() , and(x, not(false())) -> x , implies(false(), y) -> not(false())} StartTerms: basic terms Strategy: innermost Certificate: YES(O(1),O(1)) Proof: Empty rules are trivially bounded Hurray, we answered YES(?,O(n^1))