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Mirrors > Home > MPE Home > Th. List > acnrcl | Structured version Visualization version Unicode version |
Description: Reverse closure for the choice set predicate. (Contributed by Mario Carneiro, 31-Aug-2015.) |
Ref | Expression |
---|---|
acnrcl |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ne0i 3921 |
. . 3
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2 | abn0 3954 |
. . . 4
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3 | simpl 473 |
. . . . 5
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4 | 3 | exlimiv 1858 |
. . . 4
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5 | 2, 4 | sylbi 207 |
. . 3
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6 | 1, 5 | syl 17 |
. 2
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7 | df-acn 8768 |
. 2
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8 | 6, 7 | eleq2s 2719 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-v 3202 df-dif 3577 df-nul 3916 df-acn 8768 |
This theorem is referenced by: acni 8868 acni2 8869 acndom2 8877 fodomacn 8879 iundom2g 9362 |
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