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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 1776 equsexd 1777 rexim 2627 rr19.28v 2947 sotricim 4426 sotritrieq 4428 ordsucss 4608 ordpwsucss 4671 peano5 4702 iss 5065 funssres 5376 ssimaex 5716 elpreima 5775 resflem 5819 tposfo2 6476 nnmord 6728 map0g 6900 mapsn 6902 enq0tr 7697 addnqprl 7792 addnqpru 7793 cauappcvgprlemdisj 7914 lttri3 8302 ltleap 8855 mulgt1 9086 nominpos 9425 uzind 9634 indstr 9870 eqreznegel 9891 ccatopth 11344 shftuz 11438 caucvgrelemcau 11601 sqrtsq 11665 mulcn2 11933 dvdsgcdb 12645 algcvgblem 12682 lcmdvdsb 12717 rpexp 12786 infpnlem1 12993 imasring 14139 unitmulclb 14190 cnntr 15016 cnrest2 15027 txlm 15070 metrest 15297 uspgr2wlkeq 16286 bj-om 16633 |
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