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Theorem cesaro 2008
 Description: "Cesaro", one of the syllogisms of Aristotelian logic. No is , all is , and exist, therefore some is not . (In Aristotelian notation, EAO-2: PeM and SaM therefore SoP.) (Contributed by David A. Wheeler, 28-Aug-2016.) (Revised by David A. Wheeler, 2-Sep-2016.)
Hypotheses
Ref Expression
cesaro.maj
cesaro.min
cesaro.e
Assertion
Ref Expression
cesaro

Proof of Theorem cesaro
StepHypRef Expression
1 cesaro.e . 2
2 cesaro.maj . . . . 5
32spi 1429 . . . 4
4 cesaro.min . . . . 5
54spi 1429 . . . 4
63, 5nsyl3 556 . . 3
76ancli 306 . 2
81, 7eximii 1493 1
 Colors of variables: wff set class Syntax hints:   wn 3   wi 4   wa 97  wal 1241  wex 1381 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-in1 544  ax-in2 545  ax-5 1336  ax-gen 1338  ax-ie1 1382  ax-ie2 1383  ax-4 1400  ax-ial 1427 This theorem depends on definitions:  df-bi 110 This theorem is referenced by: (None)
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