Description: Hilbert space operator cancellation law. (Contributed by NM, 10-Mar-2006) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypotheses | hosd1.2 | |
|
hosd1.3 | |
||
Assertion | hopncani | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | hosd1.2 | |
|
2 | hosd1.3 | |
|
3 | 1 2 2 | hoaddsubassi | |
4 | 2 | hodidi | |
5 | 4 | oveq2i | |
6 | 1 | hoaddid1i | |
7 | 3 5 6 | 3eqtri | |