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Mirrors > Home > ILE Home > Th. List > dju1p1e2 | Unicode version |
Description: Disjoint union version of one plus one equals two. (Contributed by Jim Kingdon, 1-Jul-2022.) |
Ref | Expression |
---|---|
dju1p1e2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | djuun 7097 |
. 2
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2 | djuin 7094 |
. . 3
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3 | djulf1o 7088 |
. . . . . . . 8
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4 | f1of1 5479 |
. . . . . . . 8
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5 | 3, 4 | ax-mp 5 |
. . . . . . 7
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6 | ssv 3192 |
. . . . . . 7
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7 | f1ores 5495 |
. . . . . . 7
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8 | 5, 6, 7 | mp2an 426 |
. . . . . 6
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9 | 1oex 6450 |
. . . . . . 7
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10 | 9 | f1oen 6786 |
. . . . . 6
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11 | 8, 10 | ax-mp 5 |
. . . . 5
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12 | 11 | ensymi 6809 |
. . . 4
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13 | djurf1o 7089 |
. . . . . . . 8
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14 | f1of1 5479 |
. . . . . . . 8
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15 | 13, 14 | ax-mp 5 |
. . . . . . 7
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16 | f1ores 5495 |
. . . . . . 7
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17 | 15, 6, 16 | mp2an 426 |
. . . . . 6
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18 | 9 | f1oen 6786 |
. . . . . 6
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19 | 17, 18 | ax-mp 5 |
. . . . 5
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20 | 19 | ensymi 6809 |
. . . 4
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21 | pm54.43 7220 |
. . . 4
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22 | 12, 20, 21 | mp2an 426 |
. . 3
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23 | 2, 22 | mpbi 145 |
. 2
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24 | 1, 23 | eqbrtrri 4041 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2162 ax-14 2163 ax-ext 2171 ax-coll 4133 ax-sep 4136 ax-nul 4144 ax-pow 4192 ax-pr 4227 ax-un 4451 ax-setind 4554 ax-iinf 4605 |
This theorem depends on definitions: df-bi 117 df-dc 836 df-3or 981 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2041 df-mo 2042 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-ne 2361 df-ral 2473 df-rex 2474 df-reu 2475 df-rab 2477 df-v 2754 df-sbc 2978 df-csb 3073 df-dif 3146 df-un 3148 df-in 3150 df-ss 3157 df-nul 3438 df-pw 3592 df-sn 3613 df-pr 3614 df-op 3616 df-uni 3825 df-int 3860 df-iun 3903 df-br 4019 df-opab 4080 df-mpt 4081 df-tr 4117 df-id 4311 df-iord 4384 df-on 4386 df-suc 4389 df-iom 4608 df-xp 4650 df-rel 4651 df-cnv 4652 df-co 4653 df-dm 4654 df-rn 4655 df-res 4656 df-ima 4657 df-iota 5196 df-fun 5237 df-fn 5238 df-f 5239 df-f1 5240 df-fo 5241 df-f1o 5242 df-fv 5243 df-1st 6166 df-2nd 6167 df-1o 6442 df-2o 6443 df-er 6560 df-en 6768 df-dju 7068 df-inl 7077 df-inr 7078 |
This theorem is referenced by: exmidfodomrlemr 7232 exmidfodomrlemrALT 7233 |
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