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Theorem rmo5 2519
Description: Restricted "at most one" in term of uniqueness. (Contributed by NM, 16-Jun-2017.)
Assertion
Ref Expression
rmo5

Proof of Theorem rmo5
StepHypRef Expression
1 df-mo 1901 . 2
2 df-rmo 2308 . 2
3 df-rex 2306 . . 3
4 df-reu 2307 . . 3
53, 4imbi12i 228 . 2
61, 2, 53bitr4i 201 1
Colors of variables: wff set class
Syntax hints:   wi 4   wa 97   wb 98  wex 1378   wcel 1390  weu 1897  wmo 1898  wrex 2301  wreu 2302  wrmo 2303
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  9291
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