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Mirrors > Home > ILE Home > Th. List > rmo5 | Unicode version |
Description: Restricted "at most one" in term of uniqueness. (Contributed by NM, 16-Jun-2017.) |
Ref | Expression |
---|---|
rmo5 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-mo 1901 |
. 2
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2 | df-rmo 2308 |
. 2
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3 | df-rex 2306 |
. . 3
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4 | df-reu 2307 |
. . 3
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5 | 3, 4 | imbi12i 228 |
. 2
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6 | 1, 2, 5 | 3bitr4i 201 |
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 99 ax-ia2 100 ax-ia3 101 |
This theorem depends on definitions: df-bi 110 df-mo 1901 df-rex 2306 df-reu 2307 df-rmo 2308 |
This theorem is referenced by: nrexrmo 2520 cbvrmo 2526 bdrmo 9311 |
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