Description: A transposition of elements of a set without a special element corresponds to a transposition of elements of the set. (Contributed by AV, 15-Jan-2019)
Ref | Expression | ||
---|---|---|---|
Hypotheses | pmtrdifel.t | |
|
pmtrdifel.r | |
||
Assertion | pmtrdifel | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pmtrdifel.t | |
|
2 | pmtrdifel.r | |
|
3 | eqid | |
|
4 | 1 2 3 | pmtrdifellem1 | |
5 | 1 2 3 | pmtrdifellem3 | |
6 | fveq1 | |
|
7 | 6 | eqeq2d | |
8 | 7 | ralbidv | |
9 | 8 | rspcev | |
10 | 4 5 9 | syl2anc | |
11 | 10 | rgen | |