Description: A double modus ponens inference. Inference associated with mpd . (Contributed by BJ, 24-Sep-2019)
Ref | Expression | ||
---|---|---|---|
Hypotheses | bj-mp2c.1 | |
|
bj-mp2c.2 | |
||
bj-mp2c.3 | |
||
Assertion | bj-mp2c | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bj-mp2c.1 | |
|
2 | bj-mp2c.2 | |
|
3 | bj-mp2c.3 | |
|
4 | 1 2 | ax-mp | |
5 | 1 4 3 | mp2 | |