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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 |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia3 108 |
| This theorem is used by: jca2 308 jctild 316 jctird 317 ancld 325 ancrd 326 anim12ii 343 equsex 1780 equsexd 1782 rexim 2644 rr19.28v 2966 sotricim 4470 sotritrieq 4472 ordsucss 4653 ordpwsucss 4716 peano5 4747 iss 5112 funssres 5423 ssimaex 5767 elpreima 5831 resflem 5875 tposfo2 6543 nnmord 6795 map0g 6974 mapsn 6978 enq0tr 7808 addnqprl 7903 addnqpru 7904 cauappcvgprlemdisj 8025 lttri3 8412 ltleap 8969 mulgt1 9202 nominpos 9555 uzind 9768 indstr 10009 eqreznegel 10030 ccatopth 11510 shftuz 11604 caucvgrelemcau 11768 sqrtsq 11832 mulcn2 12103 dvdsgcdb 12815 algcvgblem 12852 lcmdvdsb 12887 rpexp 12957 infpnlem1 13167 imasring 14478 unitmulclb 14530 assapropd 15123 cnntr 15484 cnrest2 15495 txlm 15538 metrest 15765 bposlem7 16350 uspgr2wlkeq 16844 bj-om 17201 |
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