Description: A set belongs to its successor. This proof was automatically derived from sucidALTVD using translate__without__overwriting.cmd and minimizing. (Contributed by Alan Sare, 18-Feb-2012) (Proof modification is discouraged.) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypothesis | sucidALT.1 | |
|
Assertion | sucidALT | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sucidALT.1 | |
|
2 | 1 | snid | |
3 | elun1 | |
|
4 | 2 3 | ax-mp | |
5 | df-suc | |
|
6 | 5 | equncomi | |
7 | 4 6 | eleqtrri | |