Description: The distance function, suitably truncated, is a metric on X . (Contributed by Mario Carneiro, 2-Oct-2015)
Ref | Expression | ||
---|---|---|---|
Hypotheses | mscl.x | |
|
mscl.d | |
||
Assertion | msmet2 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mscl.x | |
|
2 | mscl.d | |
|
3 | 2 | reseq1i | |
4 | 1 3 | msmet | |