Description: Subtraction of reciprocals. (Contributed by Scott Fenton, 9-Jan-2017)
Ref | Expression | ||
---|---|---|---|
Hypotheses | subrecd.1 | |
|
subrecd.2 | |
||
subrecd.3 | |
||
subrecd.4 | |
||
Assertion | subrecd | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | subrecd.1 | |
|
2 | subrecd.2 | |
|
3 | subrecd.3 | |
|
4 | subrecd.4 | |
|
5 | subrec | |
|
6 | 1 3 2 4 5 | syl22anc | |