Metamath Proof Explorer
Description: A closed interval, with more than one element is uncountable.
(Contributed by Glauco Siliprandi, 3-Jan-2021)
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Ref |
Expression |
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Hypotheses |
iccnct.a |
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iccnct.b |
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iccnct.l |
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iccnct.c |
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Assertion |
iccnct |
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Proof
Step |
Hyp |
Ref |
Expression |
1 |
|
iccnct.a |
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2 |
|
iccnct.b |
|
3 |
|
iccnct.l |
|
4 |
|
iccnct.c |
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5 |
|
eqid |
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6 |
1 2 3 5
|
ioonct |
|
7 |
|
ioossicc |
|
8 |
7 4
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sseqtrri |
|
9 |
8
|
a1i |
|
10 |
6 9
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ssnct |
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