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| Description: A double syllogism inference. |
| Ref | Expression |
|---|---|
| sylan.1 |
|
| syl2anb.2 |
|
| syl2anb.3 |
|
| Ref | Expression |
|---|---|
| syl2anb |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylan.1 |
. . 3
| |
| 2 | syl2anb.2 |
. . 3
| |
| 3 | 1, 2 | sylanb 451 |
. 2
|
| 4 | syl2anb.3 |
. 2
| |
| 5 | 3, 4 | sylan2b 454 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sylancb 476 opth2 2876 pwssun 2905 ordsucsssuc 3179 ordsucun 3180 fnun 3700 f1oun 3815 th3qlem1 4455 ener 4551 domtr 4556 undom 4579 xpdom2 4583 mapen 4638 abfii4 4707 pm54.43 4715 suc11reg 4750 kmlem9 4919 zorn 4943 mulclpi 5175 pre-axmulgt0 5444 xrltnsym 5704 xrlttri 5706 lt2addi 5750 le2addi 5751 addge0i 5753 add20i 5756 mulge0i 5761 addgtge0 5803 mulnzcnopr 5854 lt2msqi 6026 rpaddcl 6206 rpmulcl 6207 rpdivcl 6208 nn0addcl 6288 nn0ltp1le 6295 nn0sub 6329 zaddcl 6333 zmulcl 6348 zltp1le 6349 qaddcl 6408 qmulcl 6410 nnwo 6585 cvganz 7127 bccl2 7174 isumnn0nn 7411 xpnnen 7711 subbas 7856 tgioolem 8125 ablsn 8366 ablmul 8372 ringsn 8405 pslem 8909 efif1lem7 9008 hsn0elch 9396 projlem4 9465 5oalem6 9882 hmopidmchi 10359 superpos 10562 ghomsn 10673 infi1 10735 ficli 10756 inttr 10787 inposet 10868 oefil2 11079 filintf 11081 fgsb 11082 fgsb2 11086 rcfpfillem4 11092 supfil 11645 morex 11804 heiborlem18 12028 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 145 df-an 223 |