Description: A syllogism deduction. (Contributed by NM, 15-Dec-2004)
Ref | Expression | ||
---|---|---|---|
Hypotheses | syland.1 | |
|
syland.2 | |
||
Assertion | syland | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | syland.1 | |
|
2 | syland.2 | |
|
3 | 2 | expd | |
4 | 1 3 | syld | |
5 | 4 | impd | |