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| Description: A contraposition deduction. |
| Ref | Expression |
|---|---|
| con3d.1 |
|
| Ref | Expression |
|---|---|
| con3d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | con3d.1 |
. 2
| |
| 2 | con3 94 |
. 2
| |
| 3 | 1, 2 | syl 10 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: mtoi 107 mtod 108 nsyld 117 nsyli 121 mth8 123 pm3.48 559 pm5.21nd 682 bibif 683 meredith 926 19.22 1041 a4ime 1162 equs5e 1200 sbn 1233 a12stdy1 1374 a12stdy4 1377 a12studyALT 1381 mo 1395 nelneq 1564 nelneq2 1565 necon3ad 1605 necon3bd 1606 mo2icl 1926 sscon 2174 difrab 2276 disjsn 2445 dtruALT 2754 nsuceq0 3059 limom 3152 relimasn 3431 ndmfv 3751 eqfnfv 3803 dff2 3823 canth 3913 tz7.49 3965 oaord 4187 oalimcl 4200 omord2 4204 omcan 4206 oeord 4221 oecan 4222 nneob 4261 omsmo 4263 erdisj 4292 eceqopreq 4319 domnsym 4469 ensdomtr 4477 domsdomtr 4482 isfinite1 4539 isfinite1OLD 4540 infsdomnn 4541 pssnn 4544 unfi2 4565 unfi2OLD 4566 unifi2OLD 4571 supmo 4585 kmlem2 4776 alephord 4886 prub 5110 genpnnp 5120 ltaddpr 5152 prlem936 5167 suppsr3 5236 ssxr 5552 prodge0 5822 nnge1t 5945 supxrun 6087 supxrgtmnf 6094 zeot 6201 uzwo4OLD 6212 uzwo 6456 uzwoOLD 6457 expordt 6603 caucvglem6 7162 elcncf 7265 ivthlem6 7286 infdif 7569 infdif2 7570 lmfexlem1 7953 metelcls 7962 bcthlem7 8002 chnlen0 9363 stadd 10168 stadd3 10170 strlem1 10172 cvnbtwnt 10208 atoml2 10305 atcvatlem 10307 mdsymlem3 10327 fisub 10558 cnfilca 10562 iintlem1 10603 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |