Metamath Proof Explorer
Description: A number is less than or equal to itself plus a nonnegative integer.
(Contributed by NM, 10-Mar-2005)
|
|
Ref |
Expression |
|
Hypotheses |
nn0addge1i.1 |
|
|
|
nn0addge1i.2 |
|
|
Assertion |
nn0addge2i |
|
Proof
| Step |
Hyp |
Ref |
Expression |
| 1 |
|
nn0addge1i.1 |
|
| 2 |
|
nn0addge1i.2 |
|
| 3 |
|
nn0addge2 |
|
| 4 |
1 2 3
|
mp2an |
|