Description: The covers relation is not transitive. ( cvntr analog.) (Contributed by NM, 18-Jun-2012)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | cvrntr.b | ||
| cvrntr.c | |||
| Assertion | cvrntr | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | cvrntr.b | ||
| 2 | cvrntr.c | ||
| 3 | eqid | ||
| 4 | 1 3 2 | cvrlt | |
| 5 | 4 | ex | |
| 6 | 5 | 3adant3r3 | |
| 7 | 1 3 2 | ltcvrntr | |
| 8 | 6 7 | syland |