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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 7497. (Contributed by Jim Kingdon, 10-Nov-2019.) |
Ref | Expression |
---|---|
prarloclemup |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpllr 534 |
. . 3
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2 | simprl 529 |
. . 3
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3 | simplr 528 |
. . 3
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4 | rspe 2526 |
. . 3
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5 | 1, 2, 3, 4 | syl12anc 1236 |
. 2
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6 | 5 | exp31 364 |
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-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-4 1510 |
This theorem depends on definitions: df-bi 117 df-rex 2461 |
This theorem is referenced by: prarloclem3step 7490 |
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