Double turnstile

In logic, the symbol ⊨, or is called the double turnstile.It is often read as "entails", "models", "is a semantic consequence of" or "is stronger than". It is closely related to the turnstile symbol , which has a single bar across the middle.

Double turnstile

In logic, the symbol ⊨, or is called the double turnstile.It is often read as "entails", "models", "is a semantic consequence of" or "is stronger than". It is closely related to the turnstile symbol , which has a single bar across the middle.