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Mirrors > Home > ILE Home > Th. List > supeuti | Unicode version |
Description: A supremum is unique. Similar to Theorem I.26 of [Apostol] p. 24 (but for suprema in general). (Contributed by Jim Kingdon, 23-Nov-2021.) |
Ref | Expression |
---|---|
supmoti.ti |
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supeuti.2 |
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Ref | Expression |
---|---|
supeuti |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | supeuti.2 |
. 2
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2 | supmoti.ti |
. . 3
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3 | 2 | supmoti 6502 |
. 2
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4 | reu5 2572 |
. 2
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5 | 1, 3, 4 | sylanbrc 408 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 577 ax-in2 578 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-fal 1291 df-nf 1391 df-sb 1688 df-eu 1946 df-mo 1947 df-clab 2070 df-cleq 2076 df-clel 2079 df-nfc 2212 df-ral 2358 df-rex 2359 df-reu 2360 df-rmo 2361 df-v 2613 df-un 2987 df-sn 3423 df-pr 3424 df-op 3426 df-br 3807 |
This theorem is referenced by: supval2ti 6504 eqsupti 6505 supclti 6507 supubti 6508 suplubti 6509 supelti 6511 |
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