Next
Up
ImpDi
⊢
f
⊃
f
ImpDi
Proof:
1
⊢
f
;
empty
≡
f
ChopEmpty
2
⊢
empty
⊃
true
Prop
3
⊢
f
;
empty
⊃
f
;
true
2
,
RightChopImpChop
4
⊢
f
⊃
f
;
true
1
,
3
,
Prop
5
⊢
f
⊃
f
4
,
def. of
qed
Next
Up
2023-09-12
Contact
|
Home
|
ITL home
|
Course
|
Proofs
|
Algebra
|
FL
© 1996-2023