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Mirrors > Home > ILE Home > Th. List > prarloclemup | Unicode version |
Description: Contracting the upper side of an interval which straddles a Dedekind cut. Lemma for prarloc 7335. (Contributed by Jim Kingdon, 10-Nov-2019.) |
Ref | Expression |
---|---|
prarloclemup |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpllr 524 |
. . 3
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2 | simprl 521 |
. . 3
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3 | simplr 520 |
. . 3
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4 | rspe 2484 |
. . 3
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5 | 1, 2, 3, 4 | syl12anc 1215 |
. 2
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6 | 5 | exp31 362 |
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 105 ax-ia2 106 ax-ia3 107 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-4 1488 |
This theorem depends on definitions: df-bi 116 df-rex 2423 |
This theorem is referenced by: prarloclem3step 7328 |
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