Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > pm2.21i | Structured version Visualization version Unicode version |
Description: A contradiction implies anything. Inference associated with pm2.21 120. Its associated inference is pm2.24ii 117. (Contributed by NM, 16-Sep-1993.) |
Ref | Expression |
---|---|
pm2.21i.1 |
Ref | Expression |
---|---|
pm2.21i |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm2.21i.1 | . . 3 | |
2 | 1 | a1i 11 | . 2 |
3 | 2 | con4i 113 | 1 |
Copyright terms: Public domain | W3C validator |