If instead, for some player, there is exact equality between x i ∗ {\displaystyle x_{i}^{*}} and some other strategy in the set S {\displaystyle S} , then the equilibrium is classified as a weak Nash equilibrium.
Kui mõne mängija jaoks kehtib täpne võrdus x i ∗ {\displaystyle x_{i}^{*}} ja mõne muu strateegia vahel hulgas S {\displaystyle S} , siis nimetatakse tasakaalu nõrgaks Nashi tasakaaluks.