e-phi.yaml

# SPDX-FileCopyrightText: Copyright (c) 2025 Objectionary.com
# SPDX-License-Identifier: MIT
---
# PHI is no longer a normalization rule (#973): resolving an inherited
# attribute through the φ decoration is a semantic step, so it now lives in
# morphing 𝕄. Dispatching the absent 't' therefore no longer expands via
# '.φ.t'; normalization reaches a stuck normal form with the datum intact and
# leaves the φ-decorated dispatch for 𝕄 to follow.
normalize: true
input: |
  ⟦ m ↦ ⟦ x ↦ ξ.t, φ ↦ ⟦ t ↦ ⟦⟧ ⟧ ⟧.x ⟧
output: |-
  ⟦⟧:t:φ.t( ρ ↦ ⟦ x ↦ t, φ ↦ ⟦⟧:t ⟧ ):m