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Mirrors > Home > MPE Home > Th. List > undif3OLD | Structured version Visualization version Unicode version |
Description: Obsolete proof of undif3 3888 as of 13-Jul-2021. (Contributed by Alan Sare, 17-Apr-2012.) (New usage is discouraged.) (Proof modification is discouraged.) |
Ref | Expression |
---|---|
undif3OLD |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elun 3753 |
. . . 4
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2 | pm4.53 513 |
. . . . 5
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3 | eldif 3584 |
. . . . 5
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4 | 2, 3 | xchnxbir 323 |
. . . 4
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
5 | 1, 4 | anbi12i 733 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
6 | eldif 3584 |
. . 3
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7 | elun 3753 |
. . . 4
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8 | eldif 3584 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
9 | 8 | orbi2i 541 |
. . . 4
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10 | orc 400 |
. . . . . . 7
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11 | olc 399 |
. . . . . . 7
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12 | 10, 11 | jca 554 |
. . . . . 6
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13 | olc 399 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
14 | orc 400 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
15 | 13, 14 | anim12i 590 |
. . . . . 6
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16 | 12, 15 | jaoi 394 |
. . . . 5
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17 | simpl 473 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
18 | 17 | orcd 407 |
. . . . . 6
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19 | olc 399 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
20 | orc 400 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
21 | 20 | adantr 481 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
22 | 20 | adantl 482 |
. . . . . 6
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23 | 18, 19, 21, 22 | ccase 987 |
. . . . 5
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24 | 16, 23 | impbii 199 |
. . . 4
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25 | 7, 9, 24 | 3bitri 286 |
. . 3
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26 | 5, 6, 25 | 3bitr4ri 293 |
. 2
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27 | 26 | eqriv 2619 |
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-v 3202 df-dif 3577 df-un 3579 |
This theorem is referenced by: (None) |
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