| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > fssd | GIF version | ||
| Description: Expanding the codomain of a mapping, deduction form. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| fssd.f | ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) |
| fssd.b | ⊢ (𝜑 → 𝐵 ⊆ 𝐶) |
| Ref | Expression |
|---|---|
| fssd | ⊢ (𝜑 → 𝐹:𝐴⟶𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fssd.f | . 2 ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) | |
| 2 | fssd.b | . 2 ⊢ (𝜑 → 𝐵 ⊆ 𝐶) | |
| 3 | fss 5549 | . 2 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝐵 ⊆ 𝐶) → 𝐹:𝐴⟶𝐶) | |
| 4 | 1, 2, 3 | syl2anc 415 | 1 ⊢ (𝜑 → 𝐹:𝐴⟶𝐶) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ⊆ wss 3220 ⟶wf 5376 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 df-f 5384 |
| This theorem is used by: mapm 6975 mapsnd 6976 mapss 6979 ac6sfi 7208 fseq1p1m1 10517 seqf1oglem2 10977 sswrd 11334 resqrexlemcvg 11806 resqrexlemsqa 11811 climcvg1nlem 12139 fsumcl2lem 12189 nninfctlemfo 12841 ennnfonelemh 13352 gzsumress 13770 gzsumwsubmcl 13859 gzsumsubmcl 14231 gsumsubmclfi 14252 gsumressfi 14266 psrbaglefifi 15175 cnrest2 15479 cnptoprest2 15483 cncfss 15826 limccnpcntop 15918 dvidre 15940 dvcoapbr 15950 dvef 15970 plyaddlem 15992 plymullem 15993 plycjlemc 16003 plycn 16005 dvply2g 16009 upgruhgr 16574 umgrupgr 16575 upgr1edc 16584 umgrislfupgrdom 16594 usgrislfuspgrdom 16653 isomninnlem 17302 trilpolemisumle 17311 iswomninnlem 17323 ismkvnnlem 17326 |
| Copyright terms: Public domain | W3C validator |