Description: Betweenness implies colinearity. (Contributed by Scott Fenton, 15-Oct-2013) (Revised by Mario Carneiro, 19-Apr-2014)
Ref | Expression | ||
---|---|---|---|
Assertion | btwncolinear5 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | btwncolinear1 | ||
2 | colinearperm4 | ||
3 | 1 2 | sylibd |