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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 106 mtod 107 nsyld 116 nsyli 120 mth8 122 pm3.48 560 pm5.21nd 684 bibif 685 dn1 779 meredith 931 19.22 1075 equidALT 1163 a4ime 1197 equs5e 1235 sbn 1268 a12stdy1 1411 a12stdy4 1414 a12studyALT 1418 mo 1432 nelneq 1604 nelneq2 1605 necon3ad 1645 necon3bd 1646 mo2icl 1969 sscon 2223 difrab 2325 disjsn 2502 dtru 2831 nsuceq0 3053 limom 3233 relimasn 3517 ndmfv 3856 eqfnfv 3909 eqfnfv2 3911 dff3 3931 canth 4205 tz7.49 4260 oaord 4317 oalimcl 4330 omord2 4334 omcan 4336 oeord 4351 oecan 4352 nneob 4395 omsmo 4397 erdisj 4426 domnsym 4608 ensdomtr 4616 domsdomtr 4621 isfinite1 4677 infsdomnn 4678 pssnn 4681 unfi2 4698 unifi2 4702 supmo 4719 kmlem2 4912 alephord 5025 prub 5252 genpnnp 5262 ltaddpr 5294 prlem936 5309 suppsr3 5378 ssxr 5694 prodge0i 5960 nnge1 6088 supxrun 6253 supxrgtmnf 6260 zeo 6370 uzwo4OLD 6381 irradd 6416 irrmul 6417 uzwo 6582 uzwoOLD 6583 expord 6799 caucvglem6 7365 elcncf 7470 ivthlem6 7491 infdif 7780 infdif2 7781 lmfexlem1 8167 metelcls 8176 bcthlem7 8216 chnlen0 9644 staddi 10454 stadd3i 10456 strlem1 10458 cvnbtwn 10494 atoml2i 10592 atcvatlem 10594 mdsymlem3 10614 pm2.01bd 10722 islfin 10799 fisub 11085 cnfilca 11088 iintlem1 11155 dmsdtriord 11408 ordtypelem7 11433 compfipin0lem 11492 compfipin0 11493 alexsublem4 11499 filrn 11643 filfinnfr 11646 filufint 11659 difxp 11798 fisupg 11839 heiborlem23 12033 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |