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| Mirrors > Home > NFE Home > Th. List > oprabbii | Unicode version | ||
| Description: Equivalent wff's yield equal operation class abstractions. (Unnecessary distinct variable restrictions were removed by David Abernethy, 19-Jun-2012.) (Contributed by set.mm contributors, 28-May-1995.) (Revised by set.mm contributors, 24-Jul-2012.) |
| Ref | Expression |
|---|---|
| oprabbii.1 |
|
| Ref | Expression |
|---|---|
| oprabbii |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2353 |
. 2
| |
| 2 | oprabbii.1 |
. . . 4
| |
| 3 | 2 | a1i 10 |
. . 3
|
| 4 | 3 | oprabbidv 5564 |
. 2
|
| 5 | 1, 4 | ax-mp 8 |
1
|
| Colors of variables: wff setvar class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 5 ax-2 6 ax-3 7 ax-mp 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 |
| This theorem depends on definitions: df-bi 177 df-an 360 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-clab 2340 df-cleq 2346 df-oprab 5528 |
| This theorem is referenced by: oprab4 5566 oprabbi2i 5647 mpt2v 5719 |
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