dfsub1 - Linear Logic Proof Explorer

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Theorem dfsub1 264

Description: Restatement of dfsub 233 with nilad equality.

**Assertion**
Ref	Expression
dfsub1	⊦ ([x ≔ Y] 𝜑 ⧟ ∇x(x = Y ⊸ 𝜑))

**Proof of Theorem dfsub1**
Step	Hyp	Ref	Expression

Colors of variables: wff var nilad

Syntax hints: ⧟ wlb 55 ⊸ wli 61 nvar 203 [wsub 207 ∇wnnu 242 = weq 246

WARNING: This theorem has an incomplete proof.

This theorem is referenced by: (None)