Fractional domination in prisms

Mynhardt has conjectured that if G is a graph such that γ(G) = γ(πG) for all generalized prisms πG then G is edgeless. The fractional analogue of this conjecture is established and proved by showing that, if G is a graph with edges, then ${\displaystyle {\gamma }_{f(G\times K₂)}>{\gamma }_{f\left(G\right)}}$.