Next
Prev
Up
BaImpBi
⊢
f
⊃
f
BaImpBi
Proof:
1
⊢
f
≡
f
BaEqvBtBi
2
⊢
f
⊃
f
PTL
3
⊢
f
⊃
f
1
,
2
,
MP
qed
Here is an easy corollary:
⊢
f
⊃
f
DiImpDa
Next
Prev
Up
2024-08-03
Contact
|
Home
|
ITL home
|
Course
|
Proofs
|
Algebra
|
FL
© 1996-2024