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| Description: A negated syllogism inference. |
| Ref | Expression |
|---|---|
| nsyl.1 |
|
| nsyl.2 |
|
| Ref | Expression |
|---|---|
| nsyl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nsyl.1 |
. 2
| |
| 2 | nsyl.2 |
. . 3
| |
| 3 | 2 | con3i 114 |
. 2
|
| 4 | 1, 3 | syl 12 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: intnand 757 intnanrd 758 ax6 1325 equs4 1510 pssn2lp 2709 disjsnOLD 3090 sotrieq 3616 ordnbtwn 3761 eufromeq3 3830 dfwe2 3861 dfwe2OLD 3862 funun 4462 oprssdm 4975 tfrlem13 5131 php2 5608 en3lp 5758 cardaleph 6033 suplem2pr 6314 elnnz 7354 elnnz1 7364 fzneuz 7697 cardfz 7719 infpnlem1 8775 filintf 10274 fgfil 10290 extbas1 10291 bnj1471 13150 divalglem6 13701 axdenselem7 14025 axfelem8 14038 axfelem9 14039 axfelem11 14041 nandsym1 14246 top2usne 14898 ivthALT 15454 supfil 15560 ufinffr 15578 fsumlt1 15831 totbndbnd 15944 prtlem90 16246 0nelqs2 16269 atombase 17003 divrngidNEW 17166 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |