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Mirrors > Home > MPE Home > Th. List > pm2.61d2 | Structured version Visualization version GIF version |
Description: Inference eliminating an antecedent. (Contributed by NM, 18-Aug-1993.) |
Ref | Expression |
---|---|
pm2.61d2.1 | ⊢ (𝜑 → (¬ 𝜓 → 𝜒)) |
pm2.61d2.2 | ⊢ (𝜓 → 𝜒) |
Ref | Expression |
---|---|
pm2.61d2 | ⊢ (𝜑 → 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm2.61d2.2 | . . 3 ⊢ (𝜓 → 𝜒) | |
2 | 1 | a1i 11 | . 2 ⊢ (𝜑 → (𝜓 → 𝜒)) |
3 | pm2.61d2.1 | . 2 ⊢ (𝜑 → (¬ 𝜓 → 𝜒)) | |
4 | 2, 3 | pm2.61d 181 | 1 ⊢ (𝜑 → 𝜒) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem is referenced by: pm2.61ii 185 jaoi 853 nfald2 2467 2ax6elem 2493 nfsbd 2564 sbal1 2572 nfabd2 3004 nfabd2OLD 3005 rgen2a 3231 posn 5639 frsn 5641 relimasn 5954 nfriotadw 7124 nfriotad 7127 tfinds 7576 curry1val 7802 curry2val 7806 onfununi 7980 findcard2s 8761 xpfi 8791 fiint 8797 acndom 9479 dfac12k 9575 iundom2g 9964 nqereu 10353 ltapr 10469 xrmax1 12571 xrmin2 12574 max1ALT 12582 hasheq0 13727 swrdnd2 14019 cshw1 14186 bezout 15893 ptbasfi 22191 filconn 22493 pcopt 23628 ioorinv 24179 itg1addlem2 24300 itg1addlem4 24302 itgss 24414 bddmulibl 24441 pthdlem2 27551 mdsymlem6 30187 sumdmdlem2 30198 bj-ax6elem1 34001 wl-equsb4 34795 wl-sbalnae 34800 poimirlem13 34907 poimirlem25 34919 poimirlem27 34921 remulid2 39256 sbgoldbaltlem1 43951 setrec2fun 44802 |
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