Def enum1() == 3

is mentioned by

Thm* i:enum1(). i = enum1_el1  i = enum1_el2  i = enum1_el3	[enum1_cases]
Thm* i,j:enum1(). i = j  ((i=j) ~ false)	[eq_enum1_eq_false_intro]
Thm* i,j:enum1(). i = j  ((i=j) ~ true)	[eq_enum1_eq_true_intro]
Thm* SQType(enum1())	[enum1_sq]

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