for n being Nat
for s being set
for S1, S2 being non empty BoolSignature st n >= 1 & the bool-sort of S1 = the bool-sort of S2 & len the connectives of S2 >= n + 6 & the connectives of S2 . n <> the connectives of S2 . (n + 1) & the connectives of S2 . (n + 3) <> the connectives of S2 . (n + 4) & the connectives of S2 . (n + 3) <> the connectives of S2 . (n + 5) & the connectives of S2 . (n + 4) <> the connectives of S2 . (n + 5) & ( for i being Nat st i >= n & i <= n + 6 holds
( the Arity of S1 . ( the connectives of S1 . i) = the Arity of S2 . ( the connectives of S2 . i) & the ResultSort of S1 . ( the connectives of S1 . i) = the ResultSort of S2 . ( the connectives of S2 . i) ) ) & S1 is n,s integer holds
S2 is n,s integer