Meanings of underlying foundation in English

The underlying foundation of the religions is one; there is no intrinsic difference between them.

It's a framing that has the underlying foundation that not pursing policies to reduce carbon emissions is a credible alternative.

Users will most likely recognize the graphical interface elements right away, but it's the underlying foundation that keeps things running so smoothly.

But when this digital token has no underlying foundation of value it's near impossible to work out whether it's over or under valued.

Two surveys on Chinese manufacturing released today show a rebound in growth, indicating that the underlying foundations of the world's fourth-biggest economy are solid.