Description: The square function on nonnegative reals is strictly monotonic. (Contributed by NM, 3-Aug-1999)
Ref | Expression | ||
---|---|---|---|
Hypotheses | ltplus1.1 | ||
prodgt0.2 | |||
Assertion | lt2msqi |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ltplus1.1 | ||
2 | prodgt0.2 | ||
3 | lt2msq | ||
4 | 2 3 | mpanr1 | |
5 | 1 4 | mpanl1 |