Description: No standard nonnegative integer equals positive infinity. (Contributed by AV, 10-Dec-2020)
Ref | Expression | ||
---|---|---|---|
Assertion | nn0nepnf | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pnfnre | |
|
2 | 1 | neli | |
3 | nn0re | |
|
4 | 2 3 | mto | |
5 | eleq1 | |
|
6 | 4 5 | mtbiri | |
7 | 6 | necon2ai | |