(6steps)
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core
3
jlc
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At:
decidable
iff
exists
bool
function
1
1
1
1.
T:
Type
2.
P:
T
Prop
3.
g:
x:T
P(x)+(P(x)
False)
4.
x:
T
P(x)
InjCase(g(x) ; true
; false
)
By:
Witness3 x
Generated subgoal:
1
5.
y:
P(x)+(P(x)
False)
6.
y = g(x)
P(x)
InjCase(g(x) ; true
; false
)
About:
(6steps)
PrintForm
Definitions
core
3
jlc
Sections
Support(jlc)
Doc