In this paper, we have proved Diaz-Metcalf inequality for fuzzy integrals. More precisely:
If f, g : [0, 1] → R are continuous and strictly increasing functions, then the fuzzy integral inequality
−
∫ 1
0
f
s
dµ · −∫ 1
0
g
s
dµ ≤ −∫ 1
0
(f · g)
s
dµ,
holds, where s > 1 and µ is the Lebesgue measure on R. In addition, we have shown this inequality for pseudo-integrals