• Robbert Krebbers's avatar
    Hide the proof mode entailment behind a definition. · 8574d1ea
    Robbert Krebbers authored
    This solves issue #100: the proof mode notation is sometimes not printed. As
    Ralf discovered, the problem is that there are two overlapping notations:
    Notation "P ⊢ Q" := (uPred_entails P Q).
    And the "proof mode" notation:
    Notation "Γ '--------------------------------------' □ Δ '--------------------------------------' ∗ Q" :=
      (of_envs (Envs Γ Δ) ⊢ Q%I).
    These two notations overlap, so, when having a "proof mode" goal of the shape
    `of_envs (Envs Γ Δ) ⊢ Q%I`, how do we know which notation is Coq going to pick
    for pretty printing this goal? As we have seen, this choice depends on the
    import order (since both notations appear in different files), and as such, Coq
    sometimes (unintendedly) uses the first notation instead of the latter.
    The idea of this commit is to wrap `of_envs (Envs Γ Δ) ⊢ Q%I` into a definition
    so that there is no ambiguity for the pretty printer anymore.