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| Mirrors > Home > ILE Home > Th. List > mpi | GIF version | ||
| Description: A nested modus ponens inference. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Stefan Allan, 20-Mar-2006.) |
| Ref | Expression |
|---|---|
| mpi.1 | ⊢ 𝜓 |
| mpi.2 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
| Ref | Expression |
|---|---|
| mpi | ⊢ (𝜑 → 𝜒) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpi.1 | . . 3 ⊢ 𝜓 | |
| 2 | 1 | a1i 9 | . 2 ⊢ (𝜑 → 𝜓) |
| 3 | mpi.2 | . 2 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
| 4 | 2, 3 | mpd 13 | 1 ⊢ (𝜑 → 𝜒) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 |
| This theorem is referenced by: mp2 16 syl6mpi 64 mp2ani 432 pm2.24i 628 simplimdc 868 mp3an3 1363 3impexpbicom 1484 mpisyl 1492 equcomi 1752 equsex 1776 equsexd 1778 spimt 1785 spimeh 1788 equvini 1807 equveli 1808 sbcof2 1859 dveeq2 1864 ax11v2 1869 ax16i 1907 pm13.183 2955 euxfr2dc 3002 sbcth 3056 sbcth2 3131 ssun3 3384 ssun4 3385 ralf0 3612 exmidexmid 4309 rext 4331 exss 4343 uniopel 4373 onsucelsucexmid 4652 suc11g 4679 eunex 4683 ordsoexmid 4684 tfisi 4709 finds1 4724 omsinds 4744 relop 4905 dmrnssfld 5020 iss 5084 relcoi1 5294 nfunv 5385 funimass2 5434 fvssunirng 5685 fvmptg 5753 oprabidlem 6081 elovmpo 6253 tfrlem1 6539 oaword1 6704 modom 7061 0domg 7090 1ndom2 7119 diffifi 7151 exmidpw 7168 djulclb 7346 0ct 7398 iftrueb01 7533 nlt1pig 7656 dmaddpq 7694 dmmulpq 7695 archnqq 7732 prarloclemarch2 7734 prarloclemlt 7808 cnegex 8451 nnge1 9260 zneo 9679 fsum2d 12121 fsumabs 12151 fsumiun 12163 fprod2d 12309 efne0 12364 nn0o1gt2 12591 ennnfonelemex 13165 qtopbasss 15386 ivthdichlem 15516 dvmptfsum 15590 reeff1o 15638 coseq0negpitopi 15701 cos02pilt1 15716 logltb 15739 pellexlem3 15847 gausslemma2dlem0i 15930 2lgs 15977 bdop 16645 bj-nntrans 16721 exmidcon 16780 |
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