Description: An elimination deduction. (Contributed by Alan Sare, 5-Feb-2017) (Proof modification is discouraged.) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | eelT.1 | |- ( T. -> ph ) |
|
| eelT.2 | |- ( ph -> ps ) |
||
| Assertion | eelT | |- ps |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eelT.1 | |- ( T. -> ph ) |
|
| 2 | eelT.2 | |- ( ph -> ps ) |
|
| 3 | 1 2 | syl | |- ( T. -> ps ) |
| 4 | 3 | mptru | |- ps |