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Theorem infex2g 6995
Description: Existence of infimum. (Contributed by Jim Kingdon, 1-Oct-2024.)
Assertion
Ref Expression
infex2g (𝐴𝐶 → inf(𝐵, 𝐴, 𝑅) ∈ V)

Proof of Theorem infex2g
StepHypRef Expression
1 df-inf 6946 . 2 inf(𝐵, 𝐴, 𝑅) = sup(𝐵, 𝐴, 𝑅)
2 supex2g 6994 . 2 (𝐴𝐶 → sup(𝐵, 𝐴, 𝑅) ∈ V)
31, 2eqeltrid 2252 1 (𝐴𝐶 → inf(𝐵, 𝐴, 𝑅) ∈ V)
Colors of variables: wff set class
Syntax hints:  wi 4  wcel 2136  Vcvv 2725  ccnv 4602  supcsup 6943  infcinf 6944
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-13 2138  ax-14 2139  ax-ext 2147  ax-sep 4099  ax-un 4410
This theorem depends on definitions:  df-bi 116  df-tru 1346  df-nf 1449  df-sb 1751  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2296  df-rex 2449  df-rab 2452  df-v 2727  df-in 3121  df-ss 3128  df-uni 3789  df-sup 6945  df-inf 6946
This theorem is referenced by:  odzval  12169
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