Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > 3eqtr3d | Unicode version |
Description: A deduction from three chained equalities. (Contributed by NM, 4-Aug-1995.) (Proof shortened by Andrew Salmon, 25-May-2011.) |
Ref | Expression |
---|---|
3eqtr3d.1 | |
3eqtr3d.2 | |
3eqtr3d.3 |
Ref | Expression |
---|---|
3eqtr3d |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3eqtr3d.1 | . . 3 | |
2 | 3eqtr3d.2 | . . 3 | |
3 | 1, 2 | eqtr3d 2192 | . 2 |
4 | 3eqtr3d.3 | . 2 | |
5 | 3, 4 | eqtr3d 2192 | 1 |
Copyright terms: Public domain | W3C validator |