(4steps total)
PrintForm
Definitions
Lemmas
mb
nat
Sections
MarkB
generic
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
empty
support
1
1.
n
:
2.
f
:
n
3.
x
:
n
.
f
(
x
) = 0
sum(
f
(
x
) |
x
<
n
) = 0
By:
Subst' (sum(
f
(
x
) |
x
<
n
) = sum(0 |
x
<
n
)) 0
Generated subgoals:
1
sum(
f
(
x
) |
x
<
n
) = sum(0 |
x
<
n
)
1
step
2
sum(0 |
x
<
n
) = 0
1
step
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(4steps total)
PrintForm
Definitions
Lemmas
mb
nat
Sections
MarkB
generic
Doc
n
x:n. f(x) = 0
sum(f(x) | x < n) = 0
n
x:n. f(x) = 0
sum(f(x) | x < n) = 0 sum(f(x) | x < n) = sum(0 | x < n)
sum(0 | x < n) = 0
