Theorem wat 193

Description: The type of the indefinite descriptor. (Contributed by Mario Carneiro, 10-Oct-2014.)

Assertion

Ref	Expression
wat	⊢ ε:((α → ∗) → α)

Proof of Theorem wat

Step	Hyp	Ref	Expression
1		ax-wat 192	1 ⊢ ε:((α → ∗) → α)

Syntax hints:   → ht 2  ∗hb 3  wffMMJ2t 12  εtat 191

This theorem was proved from axioms:  ax-wat 192

This theorem is referenced by:  ac  197  dfex2  198  exmid  199