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| Mirrors > Home > ILE Home > Th. List > imbitrid | GIF version | ||
| Description: A mixed syllogism inference. (Contributed by NM, 12-Jan-1993.) |
| Ref | Expression |
|---|---|
| imbitrid.1 | ⊢ (𝜑 → 𝜓) |
| imbitrid.2 | ⊢ (𝜒 → (𝜓 ↔ 𝜃)) |
| Ref | Expression |
|---|---|
| imbitrid | ⊢ (𝜒 → (𝜑 → 𝜃)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imbitrid.1 | . 2 ⊢ (𝜑 → 𝜓) | |
| 2 | imbitrid.2 | . . 3 ⊢ (𝜒 → (𝜓 ↔ 𝜃)) | |
| 3 | 2 | biimpd 144 | . 2 ⊢ (𝜒 → (𝜓 → 𝜃)) |
| 4 | 1, 3 | syl5 32 | 1 ⊢ (𝜒 → (𝜑 → 𝜃)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 105 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 |
| This proof depends on definitions: df-bi 117 |
| This theorem is used by: syl5ibcom 155 imbitrrid 156 sbft 1901 gencl 2854 spsbc 3063 prexg 4351 posng 4849 sosng 4850 optocl 4853 xpexcnvm 5145 relcnvexb 5330 funimass1 5461 dmfex 5585 f1ocnvb 5656 eqfnfv2 5810 elpreima 5831 dff13 5977 f1ocnvfv 5988 f1ocnvfvb 5989 fliftfun 6005 eusvobj2 6074 mpoxopn0yelv 6514 rntpos 6532 erexb 6836 findcard2 7198 findcard2s 7199 xpfi 7244 sbthlemi3 7282 enq0tr 7808 addnqprllem 7901 addnqprulem 7902 distrlem1prl 7956 distrlem1pru 7957 recexprlem1ssl 8007 recexprlem1ssu 8008 elrealeu 8203 addcan 8514 addcan2 8515 neg11 8585 negreb 8599 mulcanapd 8998 receuap 9008 cju 9300 nn1suc 9333 nnaddcl 9334 nndivtr 9356 znegclb 9689 zaddcllempos 9693 zmulcl 9710 zeo 9763 uz11 9962 uzp1 9973 eqreznegel 10031 xneg11 10254 xnegdi 10288 modqadd1 10820 modqmul1 10836 frec2uzltd 10862 bccmpl 11215 bcm1n 11230 fz1eqb 11252 eqwrd 11368 ccatopth 11511 ccatopth2 11512 swrdccatin2 11524 cj11 11694 rennim 11791 resqrexlemgt0 11809 efne0 12471 dvdsabseq 12640 pcfac 13159 divsfval 13709 grpinveu 13903 mulgass 14022 dvreq1 14559 unitrrg 14686 uptx 15512 hmeocnvb 15556 tgioo 15792 uspgrf1oedg 16634 usgr0vb 16691 bj-nnbidc 17002 bj-prexg 17154 strcollnft 17227 |
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