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| Mirrors > Home > ILE Home > Th. List > jcad | GIF version | ||
| Description: Deduction conjoining the consequents of two implications. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Wolf Lammen, 23-Jul-2013.) |
| Ref | Expression |
|---|---|
| jcad.1 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
| jcad.2 | ⊢ (𝜑 → (𝜓 → 𝜃)) |
| Ref | Expression |
|---|---|
| jcad | ⊢ (𝜑 → (𝜓 → (𝜒 ∧ 𝜃))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | jcad.1 | . 2 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
| 2 | jcad.2 | . 2 ⊢ (𝜑 → (𝜓 → 𝜃)) | |
| 3 | pm3.2 139 | . 2 ⊢ (𝜒 → (𝜃 → (𝜒 ∧ 𝜃))) | |
| 4 | 1, 2, 3 | syl6c 66 | 1 ⊢ (𝜑 → (𝜓 → (𝜒 ∧ 𝜃))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia3 108 |
| This theorem is referenced by: jca2 308 jctild 316 jctird 317 ancld 325 ancrd 326 anim12ii 343 equsex 1774 equsexd 1775 rexim 2624 rr19.28v 2943 sotricim 4415 sotritrieq 4417 ordsucss 4597 ordpwsucss 4660 peano5 4691 iss 5054 funssres 5363 ssimaex 5700 elpreima 5759 resflem 5804 tposfo2 6424 nnmord 6676 map0g 6848 mapsn 6850 enq0tr 7637 addnqprl 7732 addnqpru 7733 cauappcvgprlemdisj 7854 lttri3 8242 ltleap 8795 mulgt1 9026 nominpos 9365 uzind 9574 indstr 9805 eqreznegel 9826 ccatopth 11269 shftuz 11349 caucvgrelemcau 11512 sqrtsq 11576 mulcn2 11844 dvdsgcdb 12555 algcvgblem 12592 lcmdvdsb 12627 rpexp 12696 infpnlem1 12903 imasring 14048 unitmulclb 14099 cnntr 14920 cnrest2 14931 txlm 14974 metrest 15201 uspgr2wlkeq 16137 bj-om 16409 |
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