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Mirrors > Home > ILE Home > Th. List > nqex | Unicode version |
Description: The class of positive fractions exists. (Contributed by NM, 16-Aug-1995.) (Revised by Mario Carneiro, 27-Apr-2013.) |
Ref | Expression |
---|---|
nqex |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-nqqs 7349 |
. 2
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2 | niex 7313 |
. . . 4
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3 | 2, 2 | xpex 4743 |
. . 3
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4 | 3 | qsex 6594 |
. 2
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5 | 1, 4 | eqeltri 2250 |
1
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