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Theorem supeq1i 7018
Description: Equality inference for supremum. (Contributed by Paul Chapman, 22-Jun-2011.)
Hypothesis
Ref Expression
supeq1i.1 𝐵 = 𝐶
Assertion
Ref Expression
supeq1i sup(𝐵, 𝐴, 𝑅) = sup(𝐶, 𝐴, 𝑅)

Proof of Theorem supeq1i
StepHypRef Expression
1 supeq1i.1 . 2 𝐵 = 𝐶
2 supeq1 7016 . 2 (𝐵 = 𝐶 → sup(𝐵, 𝐴, 𝑅) = sup(𝐶, 𝐴, 𝑅))
31, 2ax-mp 5 1 sup(𝐵, 𝐴, 𝑅) = sup(𝐶, 𝐴, 𝑅)
Colors of variables: wff set class
Syntax hints:   = wceq 1364  supcsup 7012
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-ext 2171
This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1472  df-sb 1774  df-clab 2176  df-cleq 2182  df-clel 2185  df-nfc 2321  df-ral 2473  df-rex 2474  df-rab 2477  df-uni 3825  df-sup 7014
This theorem is referenced by:  infrenegsupex  9626  maxcom  11247  xrmax2sup  11297  xrmaxltsup  11301  xrmaxadd  11304  infxrnegsupex  11306  gcdcom  12009  gcdass  12051
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