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Mirrors > Home > ILE Home > Th. List > sbco2yz | Unicode version |
Description: This is a version of sbco2 1916 where is distinct from . It is a lemma on the way to proving sbco2 1916 which has no distinct variable constraints. (Contributed by Jim Kingdon, 19-Mar-2018.) |
Ref | Expression |
---|---|
sbco2yz.1 |
Ref | Expression |
---|---|
sbco2yz |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sbco2yz.1 | . . . 4 | |
2 | 1 | nfsb 1899 | . . 3 |
3 | 2 | nfri 1484 | . 2 |
4 | sbequ 1796 | . 2 | |
5 | 3, 4 | sbieh 1748 | 1 |
Colors of variables: wff set class |
Syntax hints: wb 104 wnf 1421 wsb 1720 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 |
This theorem depends on definitions: df-bi 116 df-nf 1422 df-sb 1721 |
This theorem is referenced by: sbco2h 1915 |
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