Description: If the operation value of the operation value of two nested maps-to notation is not empty, all involved arguments belong to the corresponding base classes of the maps-to notations. Using implicit substitution. (Contributed by AV, 21-May-2021)
Ref | Expression | ||
---|---|---|---|
Hypotheses | el2mpocl.o | |
|
el2mpocl.e | |
||
Assertion | el2mpocl | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | el2mpocl.o | |
|
2 | el2mpocl.e | |
|
3 | 1 | el2mpocsbcl | |
4 | simpl | |
|
5 | simplr | |
|
6 | 2 | simpld | |
7 | 6 | adantll | |
8 | 5 7 | csbied | |
9 | 4 8 | csbied | |
10 | 9 | eleq2d | |
11 | 2 | simprd | |
12 | 11 | adantll | |
13 | 5 12 | csbied | |
14 | 4 13 | csbied | |
15 | 14 | eleq2d | |
16 | 10 15 | anbi12d | |
17 | 16 | biimpd | |
18 | 17 | imdistani | |
19 | 3 18 | syl6 | |