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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 4349 posng 4847 sosng 4848 optocl 4851 xpexcnvm 5142 relcnvexb 5327 funimass1 5458 dmfex 5582 f1ocnvb 5653 eqfnfv2 5807 elpreima 5828 dff13 5974 f1ocnvfv 5985 f1ocnvfvb 5986 fliftfun 6002 eusvobj2 6071 mpoxopn0yelv 6510 rntpos 6528 erexb 6832 findcard2 7193 findcard2s 7194 xpfi 7239 sbthlemi3 7276 enq0tr 7801 addnqprllem 7894 addnqprulem 7895 distrlem1prl 7949 distrlem1pru 7950 recexprlem1ssl 8000 recexprlem1ssu 8001 elrealeu 8196 addcan 8506 addcan2 8507 neg11 8577 negreb 8591 mulcanapd 8990 receuap 9000 cju 9292 nn1suc 9324 nnaddcl 9325 nndivtr 9347 znegclb 9679 zaddcllempos 9683 zmulcl 9700 zeo 9753 uz11 9947 uzp1 9958 eqreznegel 10016 xneg11 10238 xnegdi 10272 modqadd1 10800 modqmul1 10816 frec2uzltd 10842 bccmpl 11194 bcm1n 11209 fz1eqb 11231 eqwrd 11347 ccatopth 11490 ccatopth2 11491 swrdccatin2 11503 cj11 11673 rennim 11770 resqrexlemgt0 11788 efne0 12447 dvdsabseq 12616 pcfac 13131 divsfval 13651 grpinveu 13845 mulgass 13964 dvreq1 14451 unitrrg 14578 uptx 15377 hmeocnvb 15421 tgioo 15657 uspgrf1oedg 16429 usgr0vb 16486 bj-nnbidc 16797 bj-prexg 16949 strcollnft 17022 |
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